43 AMG 390hp Stage 1 tuning

The Mercedes-Benz GLE 43 AMG 390hp produces 390 hp and 520 Nm as standard. The YASTUNING Stage 1 remap file takes it to 420 hp and 620 Nm, a gain of +30 hp and +100 Nm. Engine code M276.821. ECU: Bosch MED17.3.1, Bosch MED17.7.3.1. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.