4.2 FSI 335hp Stage 1 tuning

The Audi A6 4.2 FSI 335hp produces 335 hp and 420 Nm as standard. The YASTUNING Stage 1 remap file takes it to 355 hp and 445 Nm, a gain of +20 hp and +25 Nm. Engine code BAT. ECU: Bosch ME7.1.1, Bosch MED9. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.