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

Factory output for the Mercedes-AMG GT 63 S 4-Door is 630 hp and 664 lb-ft (crank).Stock + RK-Tunes Tune raises it to 700 hp and 745 lb-ft, a gain of 70 hp and 81 lb-ft.High Flow Downpipe / Exhaust + RK-Tunes Tune raises it to 730 hp and 775 lb-ft, a gain of 100 hp and 111 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.