R1 Performance Package | W463 | G 500 | 325 HP / 365 LB-FT | 5.0L NA V8 | M113 mercedes-benz-g-class--463---1990-2018--g-320-esr5362057 CPC Upgrade: The Powertrain Control

CPC Upgrade: The Powertrain Control Unit (CPC) upgrade increases torque limits and allows the engine to operate without the restrictions set by the stock/factory CPC unit

Power figures are calculated with a 16% drivetrain loss for AWD 9-speed vehicles

We have found the M176 engine stock performance numbers vary from the baseline figures claimed by Mercedes-Benz

C257 - CLS Coupe CLS450 (Air Body Control Optional)

R1 Performance Package | W463 | G 500 | 325 HP / 365 LB-FT | 5.0L NA V8 | M113 mercedes-benz-g-class--463---1990-2018--g-320-esr5362057 CPC Upgrade: The Powertrain ControlR1 Performance Package for 463 G 500. Includes ECU Upgrade and Carbon Fiber Air Box. Up to 325HP and 365 LB FT. The R1 performance package for the Mercedes 500 series engine includes our proprietary ECU upgrade in addition to our full carbon fiber airbox upgrade which offers a larger volume of incoming air for better engine breathing and improved cylinder filling. This combination that provides noticeable increases horsepower, torque and throttle