R1 Performance Package | C219 | CLS 55K | 538 HP / 566 LB-FT | 5.5L Supercharged V8 | M113 porsche-panamera--970---2011-2015--panamera-s-esr6103769 RENNtech M277 V12 Biturbo ECU

RENNtech M277 V12 Biturbo ECU Upgrades are TÜV approved

This two-piece Front Canards are 100% pre-preg carbon fiber and developed to complement the full RENNtech AMG GT63 aerodynamic program

Our proprietary ECU upgrade for the Mercedes M278 engine offers huge gains in performance across the entire RPM range without sacrificing around town comfort or daily driver reliability

The turbo tubes are ceramic coated in titanium to sustain high temperature and provide a more aesthetic look in the engine bay

6 / 4 (HP: 300 | Year: 10 > )

R1 Performance Package | C219 | CLS 55K | 538 HP / 566 LB-FT | 5.5L Supercharged V8 | M113 porsche-panamera--970---2011-2015--panamera-s-esr6103769 RENNtech M277 V12 Biturbo ECUR1 Performance Package for 219 CLS 55 AMG Kompressor. Includes ECU Upgrade Crankshaft Pulley and Upgraded Intercooler Pump. Up to 538HP and 566LB FT. Gains: +69HP & +50LB FT Performance package R1 includes our proprietary HHT Hand Held Tuner ECU Upgrade and crankshaft pulley in addition to our higher efficiency intercooler pump for increased, power, performance and throttle response across the entire powerband. R1 Performance Package includes: