4.6 V8 320hp Stage 1 tuning

The Cadillac STS 4.6 V8 320hp produces 320 hp and 427 Nm as standard. The YASTUNING Stage 1 remap file takes it to 340 hp and 445 Nm, a gain of +20 hp and +18 Nm. Engine code LH2. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.