6.6 Duramax Alpha RapJet High Performance Injector Set

We are proud to offer the only High Performance Fuel Injector Set for the 6.6 Alpha Duramax Hummer. Engineered to give your Hummer the correct amount of fuel for both stock Alpha H1's and Alpha H1's equipped with our legendary RapTorq Performance ECM.

The RapJet Injector Set provides rapid throttle response, crisp light-throttle performance and stronger heavy-to-full throttle power. Each RapJet set includes an installation kit for a trouble free install. Available in three stages.

Stage 1 - 50hp increase over stock

Stage 2 - 85hp increase over stock

Stage 3 - 115hp increase over stock