S3 2.0 TFSI 300hp Stage 1 tuning

The Audi A3 S3 2.0 TFSI 300hp produces 300 hp and 380 Nm as standard. The YASTUNING Stage 1 remap file takes it to 360 hp and 480 Nm, a gain of +60 hp and +100 Nm. Engine code CJX. ECU: Siemens/Continental Simos 12, Siemens/Continental Simos 18. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.