430d 258hp Stage 1 tuning

The BMW 4 serie GC 430d 258hp produces 258 hp and 560 Nm as standard. The YASTUNING Stage 1 remap file takes it to 310 hp and 650 Nm, a gain of +52 hp and +90 Nm. Engine code N57D30O1. ECU: Bosch EDC17C56. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.