Welcome To The Next Level Of EFI Performance!
Almost since they were first introduced, computer-controlled, multi-port fuel injected (EFI) engines have set a new standard for reliability and performance. But when you are looking to push your EFI engine’s performance to the next level for an extreme street or all-out race application, factory computers -often called ECUs, display a crippling lack of flexibility.

Horsepower-Friendly, Right Out Of The Box!
Aggressive camshaft profiles, high compression, and most other horsepower-increasing modifications seldom run well with even the most radically tuned factory ECU. And if the project at hand is swapping a late model EFI engine into an older vehicle, prospective new “fuelie” guys have to gain a whole lot of electrical knowledge in a hurry, or dig that tired carbureted setup out of the pile of obsolete parts in the back of the garage. That’s where FAST™ steps in to save the day with XFI™ -the easiest to install and tune aftermarket EFI system in the industry!