{"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","url":"https:\/\/www.urotuning.com\/products\/renntech-ecu-upgrade-400-hp-440-lb-ft-mercedes-172-slc-43","provider":"UroTuning","version":"1.0","type":"link"}