3.8 V8 620hp Stage 1 tuning

The McLaren 620R 3.8 V8 620hp produces 620 hp and 620 Nm as standard. The YASTUNING Stage 1 remap file takes it to 660 hp and 700 Nm, a gain of +40 hp and +80 Nm. Engine code M838TE. ECU: Bosch ME17.8.3. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.