RENNtech R1 Performance Package | S 63 AMG | W222 | 773 HP / 778 TQ | 4.0L V8 BiTurbo | M177 | MY2018 - 21 mercedes-benz-cls-class--257---2019-present--cls-450-esr3048959 The RENNtech Stage II Turbo

The RENNtech Stage II Turbo Upgrade comes with an RENNtech ECU Upgrade

521 LB-FT @ 3

):                642 HP @ 6

RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal

RENNtech R1 Performance Package | S 63 AMG | W222 | 773 HP / 778 TQ | 4.0L V8 BiTurbo | M177 | MY2018 - 21 mercedes-benz-cls-class--257---2019-present--cls-450-esr3048959 The RENNtech Stage II TurboThe Mercedes AMG S 63 (W222) is powered by the latest V8 BiTurbo engine developed by AMG, the companys Affalterbach based performance division and long fabled engine builder. The result is nothing short of spectacular and the 4. 0L V8 BiTurbo engine is an incredible platform to build performance upon. RENNtechs R1, R2, R3, and R3+ are vehicle specific performance packages, engineered to increase vehicle power output while ensuring all upgrades work in