Mercedes-AMG GT 63 4-Door ECU Tune — Power Figures

Factory output for the Mercedes-AMG GT 63 4-Door is 577 hp and 590 lb-ft (crank).Stock + RK-Tunes Tune raises it to 640 hp and 660 lb-ft, a gain of 63 hp and 70 lb-ft.High Flow Downpipe / Exhaust + RK-Tunes Tune raises it to 665 hp and 685 lb-ft, a gain of 88 hp and 95 lb-ft.This is a remote tune: we ship you the tuning cable, you plug it into the OBD port, and we flash the car by email. The ECU is not removed and the car stays with you.Figures are estimates at the crank; real-world results vary by vehicle condition, fuel and conditions.