3.5 220hp Stage 1 tuning

The Hummer H3 3.5 220hp produces 220 hp and 305 Nm as standard. The YASTUNING Stage 1 remap file takes it to 240 hp and 325 Nm, a gain of +20 hp and +20 Nm. Engine code L52. The file is checksum-corrected and reviewed by an experienced calibrator within factory component tolerances.