Hummer H1 · -> 2006

6.6 V8 305hp Stage 1 tuning

ECU remap / chiptuning file for the Hummer H1 6.6 V8 305hp. Figures below compare the stock calibration with our tuned file, reviewed by experienced calibrators with safety limits respected.

Power
305 hp 325 hp +20 hp
Torque
820 Nm 850 Nm +30 Nm

Engine specifications

Engine code
LLY
Fuel
Diesel
Displacement
6599 cc
Compression
17.5 : 1
Bore × Stroke
103.0 X 99.0 mm