45 AMG S - 421hp Stage 1 tuning

The Mercedes-Benz GLA 45 AMG S - 421hp produces 421 hp and 500 Nm as standard. The YASTUNING Stage 1 remap file takes it to 470 hp and 620 Nm, a gain of +49 hp and +120 Nm. Engine code M139. ECU: Bosch MG1CP002. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.