{"product_id":"renntech-ecu-hand-held-tuner-hht-mercedes-238-coupe-e-400-e-400-4matic","title":"Renntech ECU Hand Held Tuner HHT - Mercedes \/ 238 Coupe \/ E 400 \/ E 400 4MATIC","description":"\u003cdiv class=\"product-description\"\u003e\n\u003cdiv class=\"product-body\"\u003e\n\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\u003eWith the proprietary RENNtech ECU Tuning the W213 - E400 gains up to \u003cstrong\u003e+53 HP\u003c\/strong\u003e and \u003cstrong\u003e+78 \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 E400 is \u003cstrong\u003e392 HP\u003c\/strong\u003e and \u003cstrong\u003e463 LB-FT\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNotes:\u003c\/strong\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 published 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\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv class=\"power_numbers\"\u003e\n\u003ctable\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003ePerformance Numbers Overview\u003c\/strong\u003e \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eE400 (MY2018+ | C238 | M276 | 3.0L V6 BiTurbo) Stock Performance (at crank):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRated by \u003cstrong\u003eMercedes-Benz \u003cem\u003e(avg.)\u003c\/em\u003e\u003c\/strong\u003e:                               \u003cstrong\u003e329\u003c\/strong\u003e HP @ 5,250-6,000rpm; \u003cstrong\u003e354\u003c\/strong\u003e LB-FT @ 1,600-4,000rpm\u003c\/li\u003e\n\u003cli\u003eDyno measured by \u003cstrong\u003eRENNtech \u003cem\u003e(peak @crank)\u003c\/em\u003e\u003c\/strong\u003e:          \u003cstrong\u003e339\u003c\/strong\u003e HP @ 5,600rpm; \u003cstrong\u003e385\u003c\/strong\u003e LB-FT @ 3,030rpm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eE400 (MY2018+ | C238 | M276 | 3.0L V6 BiTurbo) Modified Performance (at crank):\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eRated by \u003cstrong\u003eRENNtech \u003cem\u003e(peak @crank)\u003c\/em\u003e\u003c\/strong\u003e:              \u003cstrong\u003e392 \u003c\/strong\u003eHP @ 5,800rpm; \u003cstrong\u003e463 \u003c\/strong\u003eLB-FT @ 3,550rpm\u003c\/li\u003e\n\u003cli\u003eRated by \u003cstrong\u003eRENNtech \u003cem\u003e(peak @wheel)\u003c\/em\u003e\u003c\/strong\u003e:              325 whp @ 5,800rpm; 384 wtq @ 3,550rpm\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cem\u003eCrank Performance Numbers are calculated with a 17% Drivetrain loss on 4MATIC vehicles.\u003c\/em\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor detailed explanation on crank HP, wheel HP, drivetrain loss, etc. please \u003ca href=\"https:\/\/www.renntechmercedes.com\/index.php\/crank-wheel-hp\" rel=\"noopener noreferrer\" target=\"_blank\"\u003eclick here\u003c\/a\u003e.\u003c\/p\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\u003cstrong\u003eDyno-Graph for Performance measured at the wheels:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cdiv class=\"dyno_graph\"\u003e\u003ca href=\"https:\/\/www.renntechmercedes.com\/images\/stories\/virtuemart\/product\/RENNtech_M276-400_ECU+_4matic_web.jpg\" rel=\"noopener noreferrer\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/www.renntechmercedes.com\/images\/stories\/virtuemart\/product\/RENNtech_M276-400_ECU+_4matic_web.jpg\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"product-related-products\"\u003e\n\u003cdiv class=\"product-fields-title-wrapper\"\u003e\u003cspan class=\"product-fields-title\"\u003e\u003cstrong\u003eRelated Products\u003c\/strong\u003e\u003c\/span\u003e\u003c\/div\u003e\n\u003c\/div\u003e","brand":"RENNtech","offers":[{"title":"Default Title","offer_id":42577748918465,"sku":"ECU:54.238.E400BT","price":2240.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0005\/7773\/2663\/products\/renntech_hht_002_fc7ebb2a-ff52-4b5a-92ab-87703f812ac4.jpg?v=1683936579","url":"https:\/\/www.urotuning.com\/products\/renntech-ecu-hand-held-tuner-hht-mercedes-238-coupe-e-400-e-400-4matic","provider":"UroTuning","version":"1.0","type":"link"}