RENNtech ECU Upgrade | CLS 400 | C218 | 392HP/432TQ | 3.0L BiTurbo V6 | M276 | MY2015-2018 ferrari-612--2004-2011--esr6569405 The rear spoiler offers a

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

0L V8 BiTurbo)  Modified Performance (at crank):

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

RENNtech ECU HHT (HandHeldTuner) for the 204 - C 63 AMG Black Series

G550 4x4² (W463) | MY2017+ | 4x4 | M176 | 4

RENNtech ECU Upgrade | CLS 400 | C218 | 392HP/432TQ | 3.0L BiTurbo V6 | M276 | MY2015-2018 ferrari-612--2004-2011--esr6569405 The rear spoiler offers aRENNtech 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