RENNtech ECU+ Upgrade | C205 | C 43 AMG | Coupe | 416 HP / 460 LB-FT | M276 | 3.0L V6 BiTurbo | MY2017-2023 mercedes-benz-c-class--204-sedan---2008-2014--c-320-cdi-esr4861286 engines is EPA Emissions compliant

engines is EPA Emissions compliant and street legal in all 50 States

our rear diffuser is manufactured using the high quality prepreg carbon fiber and is a quick and easy install that requires no modifications to the SLS’s rear bumper or underbody

AMG GT63 Four Door Coupe (X290)

Gains up to: +80 HP | +106 LB FT

RENNtech ECU+ Upgrade | C205 | C 43 AMG | Coupe | 416 HP / 460 LB-FT | M276 | 3.0L V6 BiTurbo | MY2017-2023 mercedes-benz-c-class--204-sedan---2008-2014--c-320-cdi-esr4861286 engines is EPA Emissions compliantThe RENNtech ECU Plus Upgrade brings the C 43 AMG Coupe up to 416 HP and 460 LB FT Gains: +41 HP and +62 LB FT. RENNtech 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.