45 AMG 387hp Stage 1 tuning

The Mercedes-Benz A 45 AMG 387hp produces 387 hp and 480 Nm as standard. The YASTUNING Stage 1 remap file takes it to 470 hp and 620 Nm, a gain of +83 hp and +140 Nm. Engine code M139. ECU: Bosch MG1CP002. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.