M440d 340hp Stage 1 tuning

The BMW 4 serie M440d 340hp produces 340 hp and 700 Nm as standard. The YASTUNING Stage 1 remap file takes it to 380 hp and 750 Nm, a gain of +40 hp and +50 Nm. ECU: Bosch MD1CP001. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.