{"title":"RENNtech VIN Requirement","description":"\u003cp\u003eVIN Required for all RENNtech products\u003c\/p\u003e","products":[{"product_id":"renntech-ecu-power-module-rpm-mercedes-205-2015-present-c-300-e-300-glc-300","title":"Renntech ECU Power Module RPM - Mercedes \/ 205 (2015-present) \/ C 300 \/ E 300 \/ GLC 300","description":"\u003cp\u003eThe RENNtech Power Module (RPM) ECU tune delivers significant horsepower and torque gains across the entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, and modifying boost mapping for turbo-chargers the Mercedes-Benz M274 DE20 LA -engine gains up to +41 HP and +37 LB-FT, based on Dyno measured power figures.\u003c\/p\u003e\n\u003cp\u003eThe RENNtech Power Module is contained in a CNC machined 6061 aluminum enclosure with pre-labeled wires and connectors. The RPM module comes with a bypass that can be installed in place of the module to quickly turn the vehicle back to stock performance. The harness can be uninstalled to return the vehicle to stock completely. Through our 30+ years of ECU tuning experience, countless hours of in-house research, development and long-term testing ensure that our ECU upgrade offers the best in quality, performance and reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003ePower:\u003c\/strong\u003e\u003cbr\u003eStock: 245 HPand 272 TQ\u003cbr\u003eRPM Tuned: 286 HP and 309 TQ\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment: \u003c\/strong\u003e\u003cbr\u003eThe RENNtech Power Module for Mercedes-AMG M274 -engines:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eC300\u003c\/b\u003e\u003cspan\u003e \u003c\/span\u003e(W205 -chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eE300\u003c\/strong\u003e (W213 -chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSLC300 \u003c\/b\u003e(R172)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGLC300\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(X253)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProfessional installation is recommended. \u003c\/p\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577741185217,"sku":"54.274.RPM.300","price":2480.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/RT-Piggyback-5_06553568-9653-4faa-9ae6-938f5c5fb063.jpg?v=1683939288"},{"product_id":"renntech-ecu-power-module-rpm-mercedes-257-cls-450-e-450-hybrid-e-450-hybrid-drive-gt-43","title":"Renntech ECU Power Module RPM - Mercedes \/ 257 \/ CLS 450 \/ E 450 Hybrid \/ E 450 Hybrid Drive \/ GT 43","description":"\u003cp\u003eThe RENNtech Power Module (RPM) ECU tune delivers significant horsepower and torque gains across the entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, and modifying boost mapping for turbo-chargers the Mercedes-Benz\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eM256 \u003c\/em\u003e\u003cem\u003e3.0 Inline 6 cylinder EQ Boos\u003c\/em\u003et -engine gains up to +50 HP and + 74 LB-FT, based on Dyno measured power figures.\u003c\/p\u003e\n\u003cp\u003eThe RENNtech Power Module is contained in a CNC machined 6061 aluminum enclosure with pre-labeled wires and connectors. The RPM module comes with a bypass that can be installed in place of the module to quickly turn the vehicle back to stock performance. The harness can be uninstalled to return the vehicle to stock completely. Through our 30+ years of ECU tuning experience, countless hours of in-house research, development and long-term testing ensure that our ECU upgrade offers the best in quality, performance and reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003ePower:\u003c\/strong\u003e\u003cbr\u003eStock: 367 HP and 368 TQ\u003cbr\u003eRPM Tuned: 417 HP and 442 TQ\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment: \u003c\/strong\u003e\u003cbr\u003eThe RENNtech Power Module for Mercedes-Benz M256 3.0 Inline 6 cylinder EQ Boost -engines:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eE 450\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e(W213 \/ S213 -chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eCLS 450\u003c\/strong\u003e (C257 -chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGT 43 AMG\u003c\/strong\u003e (X290 -chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGLE 450\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(V167 -chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGLS 450\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(X167-chassis)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProfessional installation is recommended. \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cem\u003e\u003cstrong\u003eBuyer Beware:\u003c\/strong\u003e There have been reported failiures the stock Turbo’s in the Mercedes-Benz M256 -engine. Increasing the power output without upgrading the OEM turbo charger may increase the chance of Turbo -failure. \u003c\/em\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577741250753,"sku":"54.256.RPM.450","price":2780.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/RT-Piggyback-5.jpg?v=1683939119"},{"product_id":"renntech-ecu-power-module-rpm-mercedes-177-a-45-cla-45-gla-45","title":"Renntech ECU Power Module RPM - Mercedes \/ 177 \/ A 45 \/ CLA 45 \/ GLA 45","description":"\u003cp\u003eThe RENNtech Power Module (RPM) ECU tune delivers significant horsepower and torque gains across the entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, and modifying boost mapping for turbo-chargers the Mercedes-AMG 45 M139 -engine gains up to +69 HP and +30 LB-FT, based on Dyno measured power figures.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe RENNtech Power Module is contained in a CNC machined 6061 aluminum enclosure with pre-labeled wires and connectors. The RPM module comes with a bypass that can be installed in place of the module to quickly turn the vehicle back to stock performance. The harness can be uninstalled to return the vehicle to stock completely. Through our 30+ years of ECU tuning experience, countless hours of in-house research, development and long-term testing ensure that our ECU upgrade offers the best in quality, performance and reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003ePower AMG 45:\u003c\/strong\u003e\u003cbr\u003eStock: 382 HPand 354 LB-FT\u003cbr\u003eRPM Tuned: 456 HP and 384 TQ | GAINS: 69 HP \u0026amp; 30 LB-FT\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePower AMG 45\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eS\u003c\/span\u003e:\u003c\/strong\u003e\u003cbr\u003eStock: 421 HPand 368 LB-FT\u003cbr\u003eRPM Tuned: 490 HP and 398 TQ | GAINS: 69HP \u0026amp; 30 LB FT\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment: \u003c\/strong\u003e\u003cbr\u003eThe RENNtech Power Module for Mercedes-AMG M139 -engines:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eA 45 AMG\u003c\/strong\u003e (X247 -chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eGLA 45 AMG \u003c\/strong\u003e(H247 -chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCLA 45 AMG\u003c\/strong\u003e (V177 and W177 -chassis)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProfessional installation is recommended. \u003c\/p\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577741316289,"sku":"54.139.RPM.45","price":2580.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/RT-Piggyback-5_42f20524-cb35-4175-adaa-159d9a806307.jpg?v=1683939107"},{"product_id":"renntech-ecu-power-module-rpm-mercedes-177-2019-a-35-cla-35-gla-35-glb-35","title":"Renntech ECU Power Module RPM - Mercedes \/ 177 (2019+) \/ A 35 \/ CLA 35 \/ GLA 35 \/ GLB 35","description":"\u003cp\u003e The RENNtech Power Module (RPM) ECU tune delivers significant horsepower and torque gains across the entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, and modifying boost mapping for turbo-chargers the Mercedes-AMG 35 M260 -engine  gains up to +38 HP and +55 LB-FT, based on Dyno measured power figures.\u003c\/p\u003e\n\u003cp\u003eThe RENNtech Power Module is contained in a CNC machined 6061 aluminum enclosure with pre-labeled wires and connectors. The RPM module comes with a bypass that can be installed in place of the module to quickly turn the vehicle back to stock performance. The harness can be uninstalled to return the vehicle to stock completely. Through our 30+ years of ECU tuning experience, countless hours of in-house research, development and long-term testing ensure that our ECU upgrade offers the best in quality, performance and reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003ePower:\u003c\/strong\u003e\u003cbr\u003eStock: 306 HPand 295 TQ\u003cbr\u003eRPM Tuned: 344 HP and 350 TQ\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment: \u003c\/strong\u003e\u003cbr\u003eThe RENNtech Power Module for Mercedes-AMG M260 -engines:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eGLB 35\u003c\/strong\u003e (X247 -chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eGLA 35\u003c\/strong\u003e (H247 -chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eCLA 35\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(V177 and W177 -chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eA 35\u003cspan\u003e \u003c\/span\u003e\u003c\/strong\u003e(C118 -chassis)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProfessional installation is recommended. \u003c\/p\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577741349057,"sku":"54.260.RPM.35","price":2480.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/RT-Piggyback-1.jpg?v=1683939646"},{"product_id":"renntech-ecu-power-module-rpm-mercedes-257-cls-53-e-53-gle-450-gle-53-gls-450-gt-53","title":"Renntech ECU Power Module RPM - Mercedes \/ 257 \/ CLS 53 \/ E 53 \/ GLE 450 \/ GLE 53 \/ GLS 450 \/ GT 53","description":"\u003cp\u003eThe RENNtech Power Module (RPM) ECU tune delivers significant horsepower and torque gains across the entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, and modifying boost mapping for turbo-chargers the\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eMercedes-AMG 53 M256 3.0L I6 Turbo EQ Boos\u003c\/em\u003et -engine gains up to +59 HP and +97 LB-FT, based on Dyno measured power figures.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eThe RENNtech Power Module is contained in a CNC machined 6061 aluminum enclosure with pre-labeled wires and connectors. The RPM module comes with a bypass that can be installed in place of the module to quickly turn the vehicle back to stock performance. The harness can be uninstalled to return the vehicle to stock completely. Through our 30+ years of ECU tuning experience, countless hours of in-house research, development and long-term testing ensure that our ECU upgrade offers the best in quality, performance and reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003ePower:\u003c\/strong\u003e\u003cbr\u003eStock: 435 HPand 383 TQ\u003cbr\u003eRPM Tuned: 494 HP and 480 TQ\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment: \u003c\/strong\u003e\u003cbr\u003eThe RENNtech Power Module for Mercedes-AMG 53 M256 -engines:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eE 53 AMG\u003c\/strong\u003e (W213 \/ S213 -chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eCLS 53 AMG\u003c\/strong\u003e (C257 -chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGT 53 AMG\u003c\/strong\u003e (X290 -chassis)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGLE 53 AMG\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003e(V167 -chassis)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProfessional installation is recommended. \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003e\u003cem\u003e\u003cstrong\u003eBuyer Beware:\u003c\/strong\u003e There have been reported failures the stock Turbo’s in the Mercedes-AMG 53 series M256 -engine. Increasing the power output without upgrading the OEM turbo charger may increase the chance of Turbo -failure. See \u003cstrong\u003e\u003ca href=\"https:\/\/www.renntechmercedes.com\/index.php\/products\/mb\/cls-class\/cls-257-2019\/cls-53-amg\/rt-stage-i-m256-257-detail\"\u003eSTAGE 1\u003c\/a\u003e \u003c\/strong\u003e and \u003cstrong\u003e\u003ca href=\"https:\/\/www.renntechmercedes.com\/index.php\/products\/mb\/cls-class\/cls-257-2019\/cls-53-amg\/rt-stage-ii-m256-257-detail\"\u003eSTAGE 2\u003c\/a\u003e\u003c\/strong\u003e Turbo Upgrade for additional details.\u003c\/em\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577742102721,"sku":"54.256.RPM.53","price":2780.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/RT-Piggyback-1_9bf95b50-1efb-4890-b3df-3d943a9fe8f9.jpg?v=1754315730"},{"product_id":"renntech-ecu-power-module-rpm-mercedes-223-s-580","title":"Renntech ECU Power Module RPM - Mercedes \/ 223 \/ S 580","description":"\u003cp\u003eThe RENNtech Power Module (RPM) ECU tune delivers significant horsepower and torque gains across the entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, and modifying boost mapping for turbo-chargers the Mercedes-Benz\u003cspan\u003e \u003c\/span\u003e\u003cem\u003eM176 \u003c\/em\u003e\u003cem\u003e4.0 V8 BiTurbo EQ Boos\u003c\/em\u003et -engine gains up to +80 HP and + 101 LB-FT, based on Dyno measured power figures.\u003c\/p\u003e\n\u003cp\u003eThe RENNtech Power Module is contained in a CNC machined 6061 aluminum enclosure with pre-labeled wires and connectors. The RPM module comes with a bypass that can be installed in place of the module to quickly turn the vehicle back to stock performance. The harness can be uninstalled to return the vehicle to stock completely. Through our 30+ years of ECU tuning experience, countless hours of in-house research, development and long-term testing ensure that our ECU upgrade offers the best in quality, performance and reliability.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cbr\u003ePower:\u003c\/strong\u003e\u003cbr\u003eDYNO measured\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eStock Power\u003c\/strong\u003e: 540 HP and 592 LB-FT Torque (453.71 AWHP \/ 496.92 AWTQ)\u003cbr\u003eDYNO measured\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003eRPM Perfomance Tune\u003c\/strong\u003e: 620 HP and 693 LB-FT Torque (520.62 AWHP \/ 582.5 AWTQ)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFitment: \u003c\/strong\u003e\u003cbr\u003eThe RENNtech Power Module for Mercedes-Benz S 580 (W223) with M178 4.0 V8 BiTurbo EQ Boost -engine:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eS 580 \u003c\/strong\u003e(W223 -chassis)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eProfessional installation is recommended.\u003c\/p\u003e\n\u003cp\u003e \u003ca href=\"https:\/\/www.renntechmercedes.com\/images\/stories\/virtuemart\/product\/RENNtech_W223_S580_WEB.jpg\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cimg src=\"https:\/\/www.renntechmercedes.com\/images\/stories\/virtuemart\/product\/RENNtech_W223_S580_WEB.jpg\" width=\"1200\" height=\"790\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577742758081,"sku":"54.176.RPM.580","price":2980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/RT-Piggyback-5_0b6a4ed6-8b7b-44c3-ad68-bbea2bd0fb71.jpg?v=1683939462"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-117-2014-2019-cla-45","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 117 (2014-2019) \/ CLA 45","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\u003cp\u003e \u003ca href=\"https:\/\/www.renntechmercedes.com\/images\/stories\/virtuemart\/product\/RENNtech_M133_45AMG_ECU+_web.jpg\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cimg src=\"https:\/\/www.renntechmercedes.com\/images\/stories\/virtuemart\/product\/RENNtech_M133_45AMG_ECU+_web.jpg\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRENNtech M133 ECU Upgrades are TÜV approved!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU upgrade for the Mercedes M133 engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eOur ECU tune offers the biggest performance gains on the market with our dyno results increasing performance from 355 HP and 332 lb\/ft torque, up to an astonishing 428 HP and 417 lb\/ft at the crank!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCLA 45 AMG (C117 - M133 2.0L Engine) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e375 hp @ 6,000 RPM; 350 lb-ft @ 2,250-5,000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eNote: Mercedes M133 engine performance when measured obtains higher numbers that rated from factory.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.renntechmercedes.com\/images\/stories\/virtuemart\/product\/RENNtech_M133_45AMG_ECU+_web.jpg\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cimg src=\"https:\/\/www.renntechmercedes.com\/images\/stories\/virtuemart\/product\/RENNtech_M133_45AMG_ECU+_web.jpg\"\u003e\u003c\/a\u003e\u003c\/p\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577744560321,"sku":"ECU:54.117.CLA45","price":1780.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_cb6e0c1a-a13a-44a8-ac17-425c90306389.jpg?v=1683922556"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-164-2007-2012-gl-320-cdi","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 164 (2007-2012) \/ GL 320 CDI","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGL 320 CDI (X164) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e230 HP \/ 389 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e253 HP \/ 464 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003eGains:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e+23 HP \/ +75 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577744658625,"sku":"ECU:54.164.GL320CDI","price":1190.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_eccbe73e-89c8-419f-84df-eb2fdd22c8a9.jpg?v=1683922724"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-156-2014-2020-gla-45","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 156 ( 2014-2020) \/ GLA 45","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRENNtech M133 ECU Upgrades are TÜV approved!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU upgrade for the Mercedes M133 engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eOur ECU tune offers the biggest performance gains on the market with our dyno results increasing performance from 355 HP and 332 lb\/ft torque, up to an astonishing 428 HP and 417 lb\/ft at the crank!\u003c\/p\u003e\n\u003cdiv class=\"dyno_graph\"\u003e\u003ca href=\"https:\/\/www.renntechmercedes.com\/images\/stories\/virtuemart\/product\/RENNtech_M133_45AMG_ECU+_web.jpg\" target=\"_blank\" rel=\"noopener noreferrer\"\u003e\u003cimg src=\"https:\/\/www.renntechmercedes.com\/images\/stories\/virtuemart\/product\/RENNtech_M133_45AMG_ECU+_web.jpg\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577744724161,"sku":"ECU:54.156.GLA45","price":1780.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_6ea2477b-a96c-4b4f-8950-bdbbfca78c29.jpg?v=1683923262"},{"product_id":"renntech-ecu-upgrade-402-hp-405-tq-mercedes-164-gl-550","title":"Renntech ECU Upgrade ( 402 HP \/ 405 TQ) - Mercedes \/ 164 \/ GL 550","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGL 550 (W164) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e382 HP @ 6000 RPM; 391 LB-FT @ 2800-4800 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e402 HP @ 6000 RPM; 405 LB-FT @ 2800 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGains:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e+20 HP \/ + 14 TQ\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577744789697,"sku":"ECU:54.164.GL550","price":1490.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_24b65e58-bb23-4fbd-b51b-f1330e35af7a.jpg?v=1683923086"},{"product_id":"renntech-ecu-upgrade-for-ml-320-mercedes-ml-164-ml-320-cdi","title":"Renntech ECU Upgrade for ML 320 - Mercedes \/ ML 164 \/ ML 320 CDI","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eML 320 CDI (W164) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e230 HP \/ 389 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e253 HP \/ 464 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGains:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e+23 HP \/ +75 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577744822465,"sku":"ECU:54.164.ML320CDI","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech-ecu-upgrade.jpg?v=1683922560"},{"product_id":"renntech-ecu-upgrade-for-ml-550-mercedes-ml-164-2006-2011-ml-550","title":"Renntech ECU Upgrade for ML 550 - Mercedes \/ ML 164 ( 2006-2011) \/ ML 550","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eML 550 (W164) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e382 HP @ 6000 RPM; 391 LB-FT @ 2800-4800 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e402 HP @ 6000 RPM; 405 LB-FT @ 2800 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGains:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e+20 HP \/ + 14 TQ\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577744855233,"sku":"ECU:54.164.ML550","price":1490.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_5dfc5263-4837-4854-bb0e-9c2f634d2132.jpg?v=1683922906"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-64-gl-350-bluetec","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 64 \/ GL 350 BlueTec","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGL 350 BlueTec (X164) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e230 HP \/ 389 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e253 HP \/ 464 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGains:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e+23 HP \/ +75 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577744888001,"sku":"ECU:54.164.GL350BLUE","price":1460.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_b7fd02ee-fb1d-4742-b08f-8fd4daa3b117.jpg?v=1683922729"},{"product_id":"renntech-ecu-upgrade-for-ml-350-mercedes-ml-164-ml-350-ml-350-bluetec","title":"Renntech ECU Upgrade for ML 350 - Mercedes \/ ML 164 \/ ML 350 \/ ML 350 BlueTec","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eML 350 BlueTec (W164) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e230 HP \/ 389 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e253 HP \/ 464 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGains:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e+23 HP \/ +75 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577744920769,"sku":"ECU:54.164.ML350BLUE","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech-ecu-upgrade_5db00377-4cf1-44ba-876e-485448269bc0.jpg?v=1683922738"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-166-gl-450","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 166 \/ GL 450","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU upgrade for the Mercedes M278 engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eOur ECU tune offers huge performance gains; increasing performance from 362 HP and 406 lb\/ft torque, to an astonishing 501 HP and 576 lb\/ft at the crank! This allows the M278 engine to run the quarter mile in an impressive time and dramatically improves 0-60 mph times.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGL 450 (X166- M278 Biturbo Engine) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e362 HP @ 5,250 RPM; 406 LB-FT @ 1,800 RPM\u003c\/li\u003e\n\u003cli\u003eNote: Mercedes M278 engine performance when measured obtains higher numbers that rated from factory.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e501 HP @ 4900 RPM; 576 LB-FT @ 4100 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGains:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e+139HP \/ +170 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577744953537,"sku":"ECU:54.166.GL450BT.V8","price":2480.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_a1b423ff-bfeb-4b67-9f88-02fde17d7937.jpg?v=1683922913"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-166-gl-450-2015","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 166 \/ GL 450 (2015)","description":"\u003cp\u003e\u003cstrong\u003eRENNtech M276 Biturbo ECU Upgrades are TÜV approved!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU upgrade for the Mercedes M276 engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eOur ECU tune offers the biggest performance gains on the market with our dyno results increasing performance from 362 HP and 384 lb\/ft torque, up to an astonishing 402 HP and 454 lb\/ft at the crank!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGL 450 BiTurbo (X166 - M276 Biturbo 4-MATIC Engine) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e362 hp @ 5,500-6,000 RPM; 384 lb-ft @ 1,800-4,000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eNote: Mercedes M276 engine performance when measured obtains higher numbers that rated from factory.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGL 450 BiTurbo (X166 - M276 Biturbo 4-MATIC Engine) Modified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e402 hp @ 5,300 RPM; 454 lb-ft @ 3,200 RPM\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577744986305,"sku":"ECU:54.166.GL450BT.V6","price":2240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_03667df0-0f61-445b-a01e-3d87ebb926c2.jpg?v=1683923091"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-gle-166-gle-450","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ GLE 166 \/ GLE 450","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith the proprietary RENNtech ECU Tuning \u003cspan\u003ethe W166 - GLE 450 gains up to \u003c\/span\u003e\u003cstrong\u003e+30 HP\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e+84 \u003c\/strong\u003e\u003cstrong\u003eLB-FT\u003c\/strong\u003e, based on power numbers measured by RENNtech. Please note that the Mercedes M276 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU Upgrade for the GLE 450 is \u003cstrong\u003e392 HP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand \u003cstrong\u003e463 LB-FT\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eWe have found the M177 engine stock performance numbers vary from the baseline figures claimed by Mercedes-Benz. We typically see higher baseline numbers than claimed by the factory.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003ePower gains are calculated based on stock numbers measured by RENNtech. Crank Performance Numbers are calculated with a 17% Drivetrain loss on 4MATIC vehicles.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eNumbers\u003cspan\u003e \u003c\/span\u003epublished by MBUSA are an average over a 750rpm range for HP and a 2,400rpm range for TQ. Power gains are calculated based on the peak stock performance measured by RENNtech.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eOur numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eStates known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745019073,"sku":"ECU:54.166.GLE450BT","price":2240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_8d49a85d-4547-4c56-898c-f67c618db495.jpg?v=1683922910"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-gle-166-gle-400","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ GLE 166 \/ GLE 400","description":"\u003cp\u003e\u003cstrong\u003eRENNtech M276 Biturbo ECU Upgrades are TÜV approved!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU upgrade for the Mercedes M276 engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eOur ECU tune offers the biggest performance gains on the market with our dyno results increasing performance from 329 HP and 354 lb\/ft torque, up to an astonishing 392 HP and 432 lb\/ft at the crank!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGLE 400 BiTurbo (X166 - M276 Biturbo 4-MATIC Engine) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e329 hp @ 5,250-6,000 RPM; 354 lb-ft @ 1,600-4,000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eNote: Mercedes M276 engine performance when measured obtains higher numbers that rated from factory.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGLE 400 BiTurbo (X166 - M276 Biturbo 4-MATIC Engine) Modified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e392 hp @ 5,800 RPM; 432 lb-ft @ 3,110 RPM\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745084609,"sku":"ECU:54.166.GLE400BT","price":2240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_06dabbb1-70a6-49a6-b679-021527510e08.jpg?v=1683923082"},{"product_id":"renntech-intermediate-ecu-hand-held-tuner-hht-mercedes-gle-166-gle-63","title":"Renntech Intermediate ECU Hand Held Tuner HHT - Mercedes \/ GLE 166 \/ GLE 63","description":"\u003cp\u003e\u003cstrong\u003eRENNtech M157 Biturbo ECU+ Upgrades are TÜV approved!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU+ upgrade for the Mercedes M157 Biturbo 4-MATIC engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOur intermediate level ECU upgrade offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eThis is ideal for customers who want increased performance in their daily driver without worry of extra strain on driveline components or for areas and countries with extreme altitudes, temperatures or fuel quality concerns. \u003c\/p\u003e\n\u003cp\u003eThis is a slight reduction from our standard tune but still offers white knuckle performance at one of the most affordable price points in the tuning market.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eWe have found the M157 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see higher baseline numbers than claimed by the factory.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003ePower gains are calculated based on stock numbers measured by RENNtech. \u003c\/em\u003e\u003cem\u003eCrank Performance Numbers are calculated with a 18% Drivetrain loss on SUVs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eOur numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eStates known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745051841,"sku":"ECU:54.166.GLE63BI","price":2850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_110664c4-311b-4774-8eea-b24d52eaa85b.jpg?v=1683922726"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-gle-166-gle-63","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ GLE 166 \/ GLE 63","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRENNtech M157 Biturbo ECU+ Upgrades are TÜV approved!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU+ upgrade for the Mercedes M157 Biturbo 4-MATIC engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eWe have found the M157 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see higher baseline numbers than claimed by the factory.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003ePower gains are calculated based on stock numbers measured by RENNtech. \u003c\/em\u003e\u003cem\u003eCrank Performance Numbers are calculated with a 18% Drivetrain loss on SUVs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eOur numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eStates known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745117377,"sku":"ECU:54.166.GLE63BT","price":2980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_47998bfa-f03e-4234-b734-da0432d36ddc.jpg?v=1683923088"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-gls-166-gls-450","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ GLS 166 \/ GLS 450","description":"\u003cp\u003e\u003cstrong\u003eRENNtech M276 Biturbo ECU Upgrades are TÜV approved!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU upgrade for the Mercedes M276 engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eOur ECU tune offers the biggest performance gains on the market with our dyno results increasing performance from 362 HP and 384 lb\/ft torque, up to an astonishing 402 HP and 454 lb\/ft at the crank!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGLS 450 BiTurbo (X166 - M276 Biturbo 4-MATIC Engine) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e362 hp @ 5,500-6,000 RPM; 384 lb-ft @ 1,800-4,000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eNote: Mercedes M276 engine performance when measured obtains higher numbers that rated from factory.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGLS 450 BiTurbo (X166 - M276 Biturbo 4-MATIC Engine) Modified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e402 hp @ 5,300 RPM; 454 lb-ft @ 3,200 RPM\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745150145,"sku":"ECU:54.166.GLS450BT","price":2240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_b3db4ed4-a82c-46d7-b6b9-99d8119896f9.jpg?v=1683923098"},{"product_id":"renntech-intermediate-ecu-hand-held-tuner-hht-mercedes-166-gl-63-gls-63","title":"Renntech Intermediate ECU Hand Held Tuner HHT - Mercedes \/ 166 \/ GL 63 \/ GLS 63","description":"\u003cp\u003e\u003cstrong\u003eRENNtech M157 Biturbo ECU+ Upgrades are TÜV approved!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU+ upgrade for the Mercedes M157 Biturbo 4-MATIC engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOur intermediate level ECU upgrade offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eThis is ideal for customers who want increased performance in their daily driver without worry of extra strain on driveline components or for areas and countries with extreme altitudes, temperatures or fuel quality concerns. \u003c\/p\u003e\n\u003cp\u003eThis is a slight reduction from our standard tune but still offers white knuckle performance at one of the most affordable price points in the tuning market.\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eWe have found the M157 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see higher baseline numbers than claimed by the factory.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003ePower gains are calculated based on stock numbers measured by RENNtech. \u003c\/em\u003e\u003cem\u003eCrank Performance Numbers are calculated with a 18% Drivetrain loss on SUVs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eOur numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eStates known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745182913,"sku":"ECU:54.166.GLS63BI","price":2850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_261b1e4e-d3f4-49a3-88e6-ea0a9ff006dc.jpg?v=1683923445"},{"product_id":"renntech-ecu-upgrade-w166-260-hp-485-tq-mercedes-ml-166-ml-350-bluetec","title":"Renntech ECU Upgrade (W166- 260 HP \/ 485 TQ) - Mercedes \/ ML 166 \/ ML 350 BlueTec","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal! Our proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eML 350 BlueTec (W166) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e240 HP \/ 455 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e260 HP \/ 485 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGains:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e+20 HP \/ +30 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745215681,"sku":"ECU:54.166.ML350BLUE","price":1460.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_14a5a106-104e-43d0-bd1c-9f883197ee3c.jpg?v=1683923094"},{"product_id":"renntech-ecu-upgrade-308hp-285tq-mercedes-ml-166-2012-2015-ml-350-blueefficiency","title":"Renntech ECU Upgrade 308HP\/285TQ - Mercedes \/ ML 166 (2012-2015) \/ ML 350 BlueEFFICIENCY","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eML 350 BlueEFFICIENCY (W166-M276 Engine) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e302 HP; 273 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e308 HP; 285 LB-FT @ 3500 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGains:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e+6 HP \u0026amp; +12 TQ\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745248449,"sku":"ECU:54.166.ML350BE","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech-ecu-upgrade_f075c1f9-8c5b-42aa-8534-b52889c16e45.jpg?v=1683922916"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-166-gl-63-gls-63","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 166 \/ GL 63 \/ GLS 63","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRENNtech M157 Biturbo ECU+ Upgrades are TÜV approved!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU+ upgrade for the Mercedes M157 Biturbo 4-MATIC engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eWe have found the M157 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see higher baseline numbers than claimed by the factory.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003ePower gains are calculated based on stock numbers measured by RENNtech. \u003c\/em\u003e\u003cem\u003eCrank Performance Numbers are calculated with a 18% Drivetrain loss on SUVs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eOur numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eStates known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745313985,"sku":"ECU:54.166.GLS63BT","price":2980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_3c095689-36fb-4ccf-a7d3-fc979be6e1d3.jpg?v=1683922903"},{"product_id":"renntech-intermediate-ecu-hand-held-tuner-hht-mercedes-ml-166-ml-63","title":"Renntech Intermediate ECU Hand Held Tuner HHT - Mercedes \/ ML 166 \/ ML 63","description":"\u003cp\u003e\u003cstrong\u003eRENNtech M157 Biturbo ECU+ Upgrades are TÜV approved!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU+ upgrade for the Mercedes M157 Biturbo 4-MATIC engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOur intermediate level ECU upgrade offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eThis is ideal for customers who want increased performance in their daily driver without worry of extra strain on driveline components or for areas and countries with extreme altitudes, temperatures or fuel quality concerns. \u003c\/p\u003e\n\u003cp\u003eThis is a slight reduction from our standard tune but still offers white knuckle performance at one of the most affordable price points in the tuning market.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eWe have found the M157 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see higher baseline numbers than claimed by the factory.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003ePower gains are calculated based on stock numbers measured by RENNtech. \u003c\/em\u003e\u003cem\u003eCrank Performance Numbers are calculated with a 18% Drivetrain loss on SUVs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eOur numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eStates known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745281217,"sku":"ECU:54.166.ML63BI","price":2850.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_03cf0cea-b1e0-4b4b-bb24-59f9a918b520.jpg?v=1683923259"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-ml-166-ml-400","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ ML 166 \/ ML 400","description":"\u003cp\u003e\u003cstrong\u003eRENNtech M276 Biturbo ECU Upgrades are TÜV approved!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU upgrade for the Mercedes M276 engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eOur ECU tune offers the biggest performance gains on the market with our dyno results increasing performance from 329 HP and 354 lb\/ft torque, up to an astonishing 392 HP and 432 lb\/ft at the crank!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eML 400 BiTurbo (X166 - M276 Biturbo 4-MATIC Engine) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e329 hp @ 5,250-6,000 RPM; 354 lb-ft @ 1,600-4,000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eNote: Mercedes\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eM276\u003c\/span\u003e engine performance when measured obtains higher numbers that rated from factory.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eML 400 BiTurbo (X166 - M276 Biturbo 4-MATIC Engine) Modified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e392 hp @ 5,800 RPM; 432 lb-ft @ 3,110 RPM\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745346753,"sku":"ECU:54.166.ML400BT","price":2240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_7455c643-952e-40ea-808d-284d8f2ee849.jpg?v=1683922918"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-ml-166-ml-63","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ ML 166 \/ ML 63","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRENNtech M157 Biturbo ECU+ Upgrades are TÜV approved!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU+ upgrade for the Mercedes M157 Biturbo 4-MATIC engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eWe have found the M157 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see higher baseline numbers than claimed by the factory.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003ePower gains are calculated based on stock numbers measured by RENNtech. \u003c\/em\u003e\u003cem\u003eCrank Performance Numbers are calculated with a 18% Drivetrain loss on SUVs.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eOur numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eStates known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745379521,"sku":"ECU:54.166.ML63BT","price":2980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_79c69017-2302-4441-94c5-d013963b43de.jpg?v=1683923275"},{"product_id":"renntech-ecu-upgrade-400-hp-440-lb-ft-mercedes-172-slc-43","title":"Renntech ECU Upgrade 400 HP \/ 440 LB-FT - Mercedes \/ 172 \/ SLC 43","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith the proprietary RENNtech ECU Upgrade \u003cspan\u003ethe R172 - SLC 43 AMG gains up to \u003c\/span\u003e\u003cstrong\u003e+25 HP\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e+40 LB-FT\u003c\/strong\u003e\u003cspan\u003e, based on power numbers measured by RENNtech. Please note that the Mercedes M276 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU Upgrade for the R172 - SLC 43 AMG is \u003cstrong\u003e400 HP\u003c\/strong\u003e and \u003cstrong\u003e440\u003c\/strong\u003e\u003cstrong\u003e LB-FT\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eMercedes M276 engine performance when measured, obtains higher numbers than rated from factory.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003ePower gains are calculated with stock numbers measured by RENNtech\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eCrank Performance Numbers are calculated with a 14% Drivetrain loss on RWD vehicles.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eOur numbers will be dependend on conditions and fuel quality. 91+ Octane gasoline is mandatory with this Performance Package.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745412289,"sku":"ECU:54.172.SLC43BI","price":1980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_f1160217-5a25-4ef4-b333-78409ee86ce1.jpg?v=1683923271"},{"product_id":"renntech-ecu-upgrade-mercedes-171-2004-2010-slk-350","title":"Renntech ECU Upgrade - Mercedes \/ 171 (2004-2010) \/ SLK 350","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSLK 350 (R171) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e268 HP @ 6000 RPM; 258 LB-FT @ 2400-5000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Perfromance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e290 HP @ 6000 RPM; 278 LB-FT @ 2400-5000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745445057,"sku":"ECU:54.171.SLK350","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech-ecu-upgrade_c1df6fb8-6c7e-4585-9710-434e10f63b54.jpg?v=1683923622"},{"product_id":"renntech-ecu-upgrade-416-hp-460-lb-ft-mercedes-172-slc-43","title":"Renntech ECU+ Upgrade 416 HP \/ 460 LB-FT - Mercedes \/ 172 \/ SLC 43","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith the proprietary RENNtech ECU Plus Upgrade \u003cspan\u003ethe R172 - SLC 43 AMG gains up to \u003c\/span\u003e\u003cstrong\u003e+41 HP\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e+62 LB-FT\u003c\/strong\u003e\u003cspan\u003e, based on power numbers measured by RENNtech. Please note that the Mercedes M276 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU Plus Upgrade for the R172 - SLC 43 AMG is \u003cstrong\u003e416 HP\u003c\/strong\u003e and \u003cstrong\u003e460\u003c\/strong\u003e\u003cstrong\u003e LB-FT\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eMercedes M276 engine performance when measured, obtains higher numbers than rated from factory.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003ePower gains are calculated with stock numbers measured by RENNtech\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eCrank Performance Numbers are calculated with a 14% Drivetrain loss on RWD vehicles.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eOur numbers will be dependend on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Package.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eDue to fuel quality problems, the following states can not be supplied with the full power Upgrade: AZ, CA, CO, LA, NV, TX, WA, Canada. Please call for detailed info +1-561-845-7888.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745477825,"sku":"ECU:54.172.SLC43BT","price":2240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_61d8ad64-858c-45bc-a809-71ecb03bf9eb.jpg?v=1683923265"},{"product_id":"renntech-ecu-upgrade-mercedes-172-2011-2015-slk-350","title":"Renntech ECU Upgrade - Mercedes \/ 172 (2011-2015) \/ SLK 350","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSLK 350 BlueEFFICIENCY (R172-M276 Engine) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e302 HP; 273 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e308 HP; 285 LB-FT @ 3500 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGains:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e+6 HP \u0026amp; +12 TQ\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745543361,"sku":"ECU:54.172.SLK350BE","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech-ecu-upgrade_1704ae26-39df-40bb-960b-ebda472c0e27.jpg?v=1683923443"},{"product_id":"renntech-ecu-upgrade-mercedes-172-slk-55","title":"Renntech ECU Upgrade - Mercedes \/ 172 \/ SLK 55","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSLK 55 (R172) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e415 HP @ 6800 RPM; 398 LB-FT @ 4500 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e448 HP @ 6250 RPM ; 423 LB-FT @ 4500 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGains:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e+33 HP \/ +25 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745576129,"sku":"ECU:54.172.SLK55","price":2250.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech-ecu-upgrade_174ee099-d891-4b46-996b-8067dbbfa40c.jpg?v=1683923439"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-176-a-45","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 176 \/ A 45","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRENNtech M133 ECU Upgrades are TÜV approved!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU upgrade for the Mercedes M133 engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eOur ECU tune offers the biggest performance gains on the market with our dyno results increasing performance from 355 HP and 332 lb\/ft torque, up to an astonishing 428 HP and 417 lb\/ft at the crank!\u003c\/p\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745608897,"sku":"ECU:54.176.A45","price":1780.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_14649d08-6212-4327-bd52-a1a43557e2f1.jpg?v=1683923277"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-amg-gt-gt","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ AMG GT \/ GT","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith the proprietary RENNtech ECU Tuning \u003cspan\u003ethe C190 AMG GT gains up to \u003c\/span\u003e\u003cstrong\u003e+95 HP\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e+115 LB-FT\u003c\/strong\u003e\u003cspan\u003e, based on power numbers measured by RENNtech. Please note that the Mercedes M178 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU Upgrade fot the AMG GT is \u003cstrong\u003e601 HP\u003c\/strong\u003e and \u003cstrong\u003e582 LB-FT\u003c\/strong\u003e.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eWe have found the M178 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see higher baseline numbers than claimed by the factory.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003ePower gains are calculated based on stock numbers measured by RENNtech. Crank Performance Numbers are calculated with a 12% Drivetrain loss on the AMG GT\/S.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eOur numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eStates known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745641665,"sku":"ECU:54.190.GT","price":2980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_d3d2407e-18b7-4b82-baab-31736ca5250b.jpg?v=1683923628"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-190-amg-gt-c-gt-c-gt-s","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 190 AMG GT C \/ GT C","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith the proprietary RENNtech ECU Tuning \u003cspan\u003ethe C190 AMG GT C gains up to \u003c\/span\u003e\u003cstrong\u003e+84 HP\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e+93 LB-FT\u003c\/strong\u003e\u003cspan\u003e, based on power numbers measured by RENNtech. Please note that the Mercedes M178 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU Upgrade fot the AMG GT C is \u003cstrong\u003e659 HP\u003c\/strong\u003e and \u003cstrong\u003e614 LB-FT\u003c\/strong\u003e.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eWe have found the M178 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see higher baseline numbers than claimed by the factory.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003ePower gains are calculated based on stock numbers measured by RENNtech. Crank Performance Numbers are calculated with a 12% Drivetrain loss on the AMG GT.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eOur numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eStates known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745674433,"sku":"ECU:54.190.GTC","price":2980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_680411a7-b0d8-46d7-a5e3-4d279f128204.jpg?v=1683923619"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-amg-gt-r-gt-r","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ AMG GT R \/ GT R","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith the proprietary RENNtech ECU Tuning \u003cspan\u003ethe C190 AMG GT R gains up to \u003c\/span\u003e\u003cstrong\u003e+50 HP\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e+73 LB-FT\u003c\/strong\u003e\u003cspan\u003e, based on power numbers measured by RENNtech. Please note that the Mercedes M178 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU Upgrade for the AMG GT R is \u003cstrong\u003e659 HP\u003c\/strong\u003e and \u003cstrong\u003e614 LB-FT\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eWe have found the M178 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see higher baseline numbers than claimed by the factory.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003ePower gains are calculated based on stock numbers measured by RENNtech. Crank Performance Numbers are calculated with a 12% Drivetrain loss on the AMG GT.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eOur numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eStates known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745707201,"sku":"ECU:54.190.GTR","price":2980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_0d8c55bc-f513-4e4a-92f2-2186837faee7.jpg?v=1683923448"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-190-amg-gt-s-gt-s","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 190 AMG GT S \/ GT S","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith the proprietary RENNtech ECU Tuning \u003cspan\u003ethe C190 AMG GT S gains up to \u003c\/span\u003e\u003cstrong\u003e+65 HP\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e+87 LB-FT\u003c\/strong\u003e\u003cspan\u003e, based on power numbers measured by RENNtech. Please note that the Mercedes M178 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU Upgrade fot the AMG GT-S is \u003cstrong\u003e601 HP\u003c\/strong\u003e and \u003cstrong\u003e582 LB-FT\u003c\/strong\u003e.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eWe have found the M178 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see higher baseline numbers than claimed by the factory.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003ePower gains are calculated based on stock numbers measured by RENNtech. Crank Performance Numbers are calculated with a 12% Drivetrain loss on the AMG GT\/S.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eOur numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eStates known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan\u003e\u003ca href=\"https:\/\/www.renntechmercedes.com\/images\/stories\/virtuemart\/product\/RENNtech_C190-GT_S_ECU+_web.jpg\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/www.renntechmercedes.com\/images\/stories\/virtuemart\/product\/RENNtech_C190-GT_S_ECU+_web.jpg\"\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/p\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745739969,"sku":"ECU:54.190.GTS","price":2980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_0fb36669-ef0e-4041-b2dc-64d72c25a5d8.jpg?v=1683923980"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-sls-black-series-sls-black-series","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ SLS Black Series \/ SLS Black Series","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eThe RENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSLS Black Series (C197) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e631 HP @ 6800 RPM; 468 LB-FT @ 4750 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e657 HP @ 6800 RPM; 490 LB-FT @ 4750 RPM\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745772737,"sku":"ECU:54.197.SLSB","price":3495.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_71b7293f-3853-46a8-9961-5093fc3134c9.jpg?v=1683923454"},{"product_id":"renntech-ecu-upgrade-mercedes-203-2001-2007-c-350","title":"Renntech ECU Upgrade - Mercedes \/ 203 (2001-2007) \/ C 350","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003eC 350 (C203) Stock Performance:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e268 HP @ 6000 RPM; 258 LB-FT @ 2400-5000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGains:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e290 HP @ 6000 RPM; 278 LB-FT @ 2400-5000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745805505,"sku":"ECU:54.203.C350","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech-ecu-upgrade_83f23a63-7143-4b9a-99a3-faf5805156cd.jpg?v=1683923799"},{"product_id":"renntech-ecu-upgrade-w204-290-hp-278-tq-mercedes-204-c-350","title":"Renntech ECU Upgrade (W204- 290 HP \/ 278 TQ) - Mercedes \/ 204 \/ C 350","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003eC 350 (W204) Stock Performance:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e268 HP @ 6000 RPM; 258 LB-FT @ 2400-5000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGains:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e290 HP @ 6000 RPM; 278 LB-FT @ 2400-5000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745838273,"sku":"ECU:54.204.C350","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech-ecu-upgrade_a2a2d4b6-56d5-4360-b04e-519cae1b961d.jpg?v=1683923806"},{"product_id":"renntech-ecu-upgrade-w204-253-hp-464-tq-mercedes-204-c320-cdi","title":"Renntech ECU Upgrade (W204- 253 HP \/ 464 TQ) - Mercedes \/ 204 \/ C320 CDI","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003eC 320 CDI (W204) Stock Performance:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e230 HP \/ 389 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eGains:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e253 HP \/ 464 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745871041,"sku":"ECU:54.204.C320CDI","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech-ecu-upgrade_4d14c23c-7af5-4d44-872e-63fc397c5737.jpg?v=1683923631"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-glk-204-glk-350","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ GLK 204 \/ GLK 350","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air\/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGLK 350 (X204) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e268 HP @ 6000 RPM; 258 LB-FT @ 2400-5000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e290 HP @ 6000 RPM; 278 LB-FT @ 2400-5000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGains:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e+22 HP \/ +20 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745903809,"sku":"ECU:54.204.GLK350","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech-ecu-upgrade_2dd6dd12-77d3-4ff3-90e2-5377e707f667.jpg?v=1683923803"},{"product_id":"renntech-ecu-upgrade-glk-350-blueefficiency-308hp-285tq-mercedes-glk-204-glk-350-blueefficieny","title":"Renntech ECU Upgrade GLK 350 BlueEFFICIENCY 308HP\/285TQ - Mercedes \/ GLK 204 \/ GLK 350 BlueEFFICIENY","description":"\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech’s tuning software for Mercedes offers significant gains performance across the vehicle’s entire power band. By modifying torque output limits, optimizing ignition timing, perfecting variable valve timing and refining boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGLK 350 BlueEFFICIENCY (X204-M276 Engine) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e302 HP; 273 LB-FT\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eModified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e308 HP; 285 LB-FT @ 3500 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eGains:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e+6 HP \u0026amp; +12 TQ\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745936577,"sku":"ECU:54.204.GLK350BE","price":995.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech-ecu-upgrade_f68d87ea-b43a-428f-9ab0-eff3dce15a57.jpg?v=1683923811"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-205-coupe-c-43","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 205 Coupe \/ C 43","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith the proprietary RENNtech ECU Upgrade \u003cspan\u003ethe C205 - C 43 AMG Coupe gains up to \u003c\/span\u003e\u003cstrong\u003e+25 HP\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e+42 LB-FT\u003c\/strong\u003e\u003cspan\u003e, based on power numbers measured by RENNtech. Please note that the Mercedes M276 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU Upgrade for the C205 - C 43 AMG Coupe is \u003cstrong\u003e400 HP\u003c\/strong\u003e and \u003cstrong\u003e440\u003c\/strong\u003e\u003cstrong\u003e LB-FT\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eMercedes M276 engine performance when measured, obtains higher numbers than rated from factory.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003ePower gains are calculated with stock numbers measured by RENNtech\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eCrank Performance Numbers are calculated with a 17% Drivetrain loss on 4MATIC vehicles.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eOur numbers will be dependend on conditions and fuel quality. 91+ Octane gasoline is mandatory with this Performance Package.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577745969345,"sku":"ECU:54.205C.C43BI","price":1980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_43e69a84-8af0-4ecd-b2b7-abd3fd86d3d3.jpg?v=1683923989"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-205-coupe-c-43-amg-coupe","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 205 Coupe \/ C 43 AMG Coupe","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith the proprietary RENNtech ECU Plus Upgrade \u003cspan\u003ethe C205 - C 43 AMG Coupe gains up to \u003c\/span\u003e\u003cstrong\u003e+41 HP\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e+62 LB-FT\u003c\/strong\u003e\u003cspan\u003e, based on power numbers measured by RENNtech. Please note that the Mercedes M276 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU Plus Upgrade for the C205 - C 43 AMG Coupe is \u003cstrong\u003e416 HP\u003c\/strong\u003e and \u003cstrong\u003e460\u003c\/strong\u003e\u003cstrong\u003e LB-FT\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eMercedes M276 engine performance when measured, obtains higher numbers than rated from factory.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003ePower gains are calculated with stock numbers measured by RENNtech\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eCrank Performance Numbers are calculated with a 17% Drivetrain loss on 4MATIC vehicles.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eOur numbers will be dependend on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Package.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eDue to fuel quality problems, not all states can be supplied with the full power Upgrade. Please call for detailed info +1-561-845-7888.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577746034881,"sku":"ECU:54.205C.C43BT","price":2240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_01e25f29-6b2f-4809-8586-8dcafc2fa44b.jpg?v=1683924166"},{"product_id":"renntech-intermediate-ecu-hand-held-tuner-hht-mercedes-205-coupe-c-63","title":"Renntech Intermediate ECU Hand Held Tuner HHT - Mercedes \/ 205 Coupe \/ C 63","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eOur intermediate level ECU upgrade offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eThis is ideal for customers who want increased performance in their daily driver without worry of extra strain on driveline components or for areas and countries with extreme altitudes, temperatures or fuel quality concerns. \u003c\/p\u003e\n\u003cp\u003eThis is a slight reduction from our standard tune but still offers white knuckle performance at one of the most affordable price points in the tuning market.\u003c\/p\u003e\n\u003cp\u003eWith the intermediate RENNtech ECU Tuning \u003cspan\u003ethe C205 - C63 AMG 4MATIC+ gains up to \u003c\/span\u003e\u003cstrong\u003e+48 HP\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e+80\u003c\/strong\u003e\u003cstrong\u003eLB-FT\u003c\/strong\u003e, based on power numbers measured by RENNtech. Please note that the Mercedes M177 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the intermediate RENNtech ECU Upgrade for the C63 and C 63 S AMG is\u003cspan\u003e \u003c\/span\u003e\u003cstrong\u003e574 HP\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eand \u003cstrong\u003e612 LB-FT\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"carb_epa\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e50-State Street Legal RENNtech HHT\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe HHT for Mercedes-Benz and Mercedes-AMG, 4.0 L BiTurbo V8, M176 | 177 | 178, engines is EPA Emissions compliant and street legal in all 50 States.\u003c\/p\u003e\n\u003cp\u003eThis product conforms to EPA Emission Standards and does not reduce effectiveness of your vehicles original pollution control systems.\u003c\/p\u003e\n\u003cp\u003eA CARB Executive Order was granted to the RENNtech HHT based on emission test results in the modified configuration, an examination of the On-Board Diagnostic II (OBD II) system, and an engineering evaluation.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e \u003cimg src=\"https:\/\/www.renntechmercedes.com\/images\/stories\/virtuemart\/product\/50-State-Logo-Tag.jpg\" alt=\"50 State Logo Tag\" width=\"100\" height=\"165\"\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eRENNtech stock power numbers are measured with the C 63 AMG. Tune is compatible with C 63 AMG and C 63 S AMG. Maximum power numbers are for both, S and non-S models.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eWe have found the M177 engine stock performance numbers vary from the baseline figures claimed by Mercedes-Benz. We typically see higher baseline numbers than claimed by the factory.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003ePower gains are calculated based on stock numbers measured by RENNtech. Crank Performance Numbers are calculated with a 16% Drivetrain loss on 4MATIC+ vehicles.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eNumbers\u003cspan\u003e \u003c\/span\u003epublished by MBUSA are an average over a 750rpm range for HP and a 2,750rpm range for TQ. Power gains are calculated based on the peak stock performance measured by RENNtech.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eOur numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eStates known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577746067649,"sku":"ECU:54.205C.C63BI","price":2460.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_0b2b0a09-1674-4ac7-8c7a-4a58694bcd3b.jpg?v=1683924350"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-205-c-400","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 205 \/ C 400","description":"\u003cp\u003e\u003cstrong\u003eRENNtech M276 Biturbo ECU Upgrades are TÜV approved!\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eOur proprietary ECU upgrade for the Mercedes M276 engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eOur ECU tune offers the biggest performance gains on the market with our dyno results increasing performance from 329 HP and 354 lb\/ft torque, up to an astonishing 392 HP and 432 lb\/ft at the crank!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eC 400 BiTurbo (W205 - M276 Biturbo 4-MATIC Engine) Stock Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e329 hp @ 5,250-6,000 RPM; 354 lb-ft @ 1,600-4,000 RPM\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cli\u003eNote: Mercedes\u003cspan\u003e \u003c\/span\u003e\u003cspan\u003eM276\u003c\/span\u003e engine performance when measured obtains higher numbers that rated from factory.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eC 400 BiTurbo (W205 - M276 Biturbo 4-MATIC Engine) Modified Performance:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e392 hp @ 5,800 RPM; 432 lb-ft @ 3,110 RPM\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577746100417,"sku":"ECU:54.205w.C400BT","price":2240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_c8c1d10e-0ec4-4d06-8410-2f3197a663a0.jpg?v=1683923987"},{"product_id":"renntech-ecu-upgrade-400-hp-440-lb-ft-mercedes-205-c-43","title":"Renntech ECU Upgrade 400 HP \/ 440 LB-FT - Mercedes \/ 205 \/ C 43","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicle's entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003eWith the RENNtech ECU Upgrade \u003cspan\u003ethe W205 - C 43 AMG Sedan gains up to \u003c\/span\u003e\u003cstrong\u003e+25 HP\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e+42 LB-FT\u003c\/strong\u003e\u003cspan\u003e, based on power numbers measured by RENNtech. Please note that the Mercedes M276 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU Upgrade for the W205 - C 43 AMG Sedan is \u003cstrong\u003e400 HP\u003c\/strong\u003e and \u003cstrong\u003e440\u003c\/strong\u003e\u003cstrong\u003e LB-FT\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eMercedes M276 engine performance when measured, obtains higher numbers than rated from factory.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003ePower gains are calculated with stock numbers measured by RENNtech\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eCrank Performance Numbers are calculated with a 17% Drivetrain loss on 4MATIC vehicles.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003e\u003cspan\u003eOur numbers will be dependent on conditions and fuel quality. 91+ Octane gasoline is mandatory with this Performance Package.\u003c\/span\u003e\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577746133185,"sku":"ECU:54.205W.C43BI","price":1980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_3f048c62-bb79-44c7-93f9-77121a9fee99.jpg?v=1683924162"},{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-205-coupe-c-63","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 205 Coupe \/ C 63","description":"\u003cp\u003eRENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!\u003c\/p\u003e\n\u003cp\u003eOur proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.\u003c\/p\u003e\n\u003cp\u003eRENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980s! Our experience, countless hours of in-house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.\u003c\/p\u003e\n\u003cp\u003eRENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air-to-fuel ratios, increasing the engine's rev limiter and modifying boost mapping for turbo-charged vehicles, RENNtech performance software unleashes the true potential of your Mercedes.\u003c\/p\u003e\n\u003cp\u003eWith the proprietary RENNtech ECU+ Tuning \u003cspan\u003ethe C205 - C 63 AMG Coupe gains up to \u003c\/span\u003e\u003cstrong\u003e+56 HP\u003c\/strong\u003e\u003cspan\u003e and \u003c\/span\u003e\u003cstrong\u003e+107 LB-FT\u003c\/strong\u003e\u003cspan\u003e, based on power numbers measured by RENNtech. Please note that the Mercedes M177 engine performance when measured, obtains higher numbers than rated from factory. The maximum power number reached with the RENNtech ECU+ Upgrade fo the C205 - C 63 AMG Coupe is up to \u003cstrong\u003e601 HP \u003c\/strong\u003eand \u003cstrong\u003e657 LB-FT\u003c\/strong\u003e.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFor detailed information about our ECU+ Upgrades feel free to email us at\u003cspan\u003e \u003c\/span\u003e\u003cspan id=\"cloakf4daa910c2ade0bce69d90ef5aa9027f\"\u003e\u003ca href=\"mailto:info@renntechmercedes.com\"\u003einfo@renntechmercedes.com\u003c\/a\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003eor call our sales-team under 561.845.7888.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"carb_epa\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003e50-State Street Legal RENNtech HHT\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eThe HHT for Mercedes-Benz and Mercedes-AMG, 4.0 L BiTurbo V8, M176 | 177 | 178, engines is EPA Emissions compliant and street legal in all 50 States.\u003c\/p\u003e\n\u003cp\u003eThis product conforms to EPA Emission Standards and does not reduce effectiveness of your vehicles original pollution control systems.\u003c\/p\u003e\n\u003cp\u003eA CARB Executive Order was granted to the RENNtech HHT based on emission test results in the modified configuration, an examination of the On-Board Diagnostic II (OBD II) system, and an engineering evaluation.\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd\u003e \u003cimg src=\"https:\/\/www.renntechmercedes.com\/images\/stories\/virtuemart\/product\/50-State-Logo-Tag.jpg\" alt=\"50 State Logo Tag\" width=\"100\" height=\"165\"\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eNotes:\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eWe have found the M177 engine stock performance numbers vary from the baseline figures claimed by Mercedes Benz. We typically see higher baseline numbers than claimed by the factory.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cem\u003ePower gains are calculated based on stock numbers measured by RENNtech. \u003c\/em\u003e\u003cem\u003eCrank Performance Numbers are calculated with a 14% Drivetrain loss on RWD vehicles.\u003c\/em\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eOur numbers will be dependent on conditions and fuel quality. 93+ Octane gasoline is mandatory with this Performance Upgrade.\u003c\/em\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cem\u003eStates known for poor fuel quality have to be supplied with a lower power setup. Please call for details and Race fuel options +1-561-845-7888.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577746165953,"sku":"ECU:54.205C.C63BT","price":2980.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_29ede9e8-ad67-4a4c-bbff-9a69cdca2bb9.jpg?v=1683923995"}],"url":"https:\/\/www.urotuning.com\/collections\/renntech-vin-requirement.oembed","provider":"UroTuning","version":"1.0","type":"link"}