M3 286hp Stage 1 tuning

The BMW M3 M3 286hp produces 286 hp and 320 Nm as standard. The YASTUNING Stage 1 remap file takes it to 306 hp and 345 Nm, a gain of +20 hp and +25 Nm. Engine code 306S. ECU: Siemens/Continental MS41, Siemens/Continental MSS50. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.