RENNtech ECU Upgrade | CLS 400 | C218 | 392HP/432TQ | 3.0L BiTurbo V6 | M276 | MY2015-2018 ferrari-612--2004-2011--esr6569405 RENNtech is proud to introduce

RENNtech is proud to introduce an all new rear decklid spoiler design for the Mercedes-Benz C-Class Coupe

The rear spoiler offers a smooth transition of airflow over the trunk lid of the vehicle to ambient air and produces greater down force across the rear of the vehicle at speed

the new setting is uploaded and the car will adjust to the new height

Crank power output caluclated with 16% Drivetrain Loss on all M

RENNtech ECU Upgrade | CLS 400 | C218 | 392HP/432TQ | 3.0L BiTurbo V6 | M276 | MY2015-2018 ferrari-612--2004-2011--esr6569405 RENNtech is proud to introduceRENNtech ECU Upgrade for 218 CLS 400 BiTurbo 4 MATIC. Up to 392HP and 432TQ. Gains: +63HP & +78TQ RENNtech M276 Biturbo ECU Upgrades are TV approved! 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