645D - 8.4 - 240hp Stage 1 tuning

The Challenger MT 645D - 8.4 - 240hp produces 240 hp and 1 Nm as standard. The YASTUNING Stage 1 remap file takes it to 280 hp and 1 Nm, a gain of +40 hp. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.