685E - 8.4 - 370hp Stage 1 tuning

The Challenger MT 685E - 8.4 - 370hp produces 370 hp and 1 Nm as standard. The YASTUNING Stage 1 remap file takes it to 400 hp and 1 Nm, a gain of +30 hp. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.