Mercedes-Benz GLS 63 AMG V8 Bi-Turbo 612hp Remap

The Mercedes-Benz GLS 63 AMG V8 Bi-Turbo 612hp is a 4.0L turbocharged petrol mhev engine producing 612 BHP and 850 Nm from the factory. With a typical Stage 1 remap, output increases to approximately 690 BHP and 950 Nm — a gain of around 78 BHP (13%) and 100 Nm (12%).

This engine has moderate remap suitability, with a balanced spread of gains across both power and torque — providing a noticeable improvement across the rev range. The tuning headroom is classified as moderate, based on the percentage gain available from the factory output.

Considerations: High tuned torque: check transmission torque capacity and service history.

All figures shown are typical estimates based on aggregated Stage 1 data for this engine variant. Actual results depend on vehicle condition, mileage, and the chosen tuning method. We recommend discussing your specific vehicle with a qualified remap professional.