Stage 2 Performance Kit +140 HP
Our Stage 2 Performance Kit for your 1996-2003 H1 Hummer will make a considerable difference to the overall power output 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 140 hp, on average, and improved cooling.
RapTorq Computer, RapBoost Turbo Boost Control Kit, RapFlow High Preformance Fuel Lifter Pump , Performance High Flow Air Filter, Equalizer Head Cooling System, and the Predator 4" Performance Exhaust System!