63 AMG 571hp Stage 1 tuning

The Mercedes-Benz G 63 AMG 571hp produces 571 hp and 760 Nm as standard. The YASTUNING Stage 1 remap file takes it to 660 hp and 1100 Nm, a gain of +89 hp and +340 Nm. Engine code M278. ECU: Bosch MED17.7.3. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.