45 AMG 381hp Stage 1 tuning

The Mercedes-Benz CLA 45 AMG 381hp produces 381 hp and 475 Nm as standard. The YASTUNING Stage 1 remap file takes it to 420 hp and 540 Nm, a gain of +39 hp and +65 Nm. Engine code M133 De 20 AL. ECU: Bosch MED17.7.2. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.