3.6 V6 256hp Stage 1 tuning

The Pontiac G8 3.6 V6 256hp produces 256 hp and 336 Nm as standard. The YASTUNING Stage 1 remap file takes it to 275 hp and 360 Nm, a gain of +19 hp and +24 Nm. Engine code LY7. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.