Stage 4 1996-2003 6.5TD

Stage 4 High Output Kit +185 HP

Our Stage 4 High Output Kit for your 1996-2003 H1 Hummer will make a huge difference to the overall power output, cooling and drivability of your H1 Hummer. The basis of the performance upgrade is the RapTorq Performance Computer system. This kit is designed to add a whole new level of performance with an additional 185 hp, on average, and improved cooling.

When placing your order please include your vin number in the section above. There will be an additional core charge of $550 for the computer and a $300 core charge for the injectors that will be reimbursed when your original computer is returned to us.

Stage 4 Extreme Kit +185 HP

RapTorq        

RapBoost     

RapFlow        

Air Filter       

Equalizer       

RapJet            

Exhaust          

Off Road Pipe

RapCool         

Cooling Upgrade (7)

Cooling increase is based on a scale of 1-10, ten providing the best possible increase in cooling over stock.