63 AMG 585hp Stage 1 tuning

The Mercedes-Benz GLS 63 AMG 585hp produces 585 hp and 760 Nm as standard. The YASTUNING Stage 1 remap file takes it to 635 hp and 935 Nm, a gain of +50 hp and +175 Nm. Engine code M157. ECU: Bosch MED17.7.3. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.