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Click here for XFI part numbers and optional components! Click here to view our XFI required components gallery! Click here to learn more about FAST FLASH Programmers! Click here to learn more about the LSX GEN III, LS1, LS2, LS6 Intake manifold! ZEX Nitrous for GEN III, LS1, LS2, LS6 -click here for more info!

XFI™ Standalone Fuel Injection System for GEN III

Easy To Install, Easy To Run
Designed as a complete, stand alone Electronic Fuel Injection (EFI) system that replaces your factory computer, the XFI™ EFI system features a fully user-programmable Engine Control Unit (ECU) and clearly labeled wiring harness that are surprisingly easy to install, a snap to tune with any laptop or desktop computer, and capable of performance that will blow your mind. The FAST™ XFI™ system precisely balances fuel, air and spark to produce incredible horsepower and superb drivability. Plus, it allows you to fine-tune like never before using C-Com™, the XFI™ system’s easy-to-navigate software. With the infinitely tunable, race-ready XFI™ system, you no longer have to live with flat spots in your horsepower curve, or settle for a “close enough” tune.

Flexible Horsepower –Only From FAST™
Aggressive camshaft profiles, high compression, and all other horsepower-increasing modifications are no problem for the XFI™ system. From mild to wild, the XFI™ EFI system delivers a level of flexibility and dependability that is virtually unheard of with obsolete carbureted systems or performance-compromised factory computers. With your GEN III crate or donor engine and the XFI™ EFI system, you can build any level of performance -from boulevard cruiser to dragstrip dominator.

 
Complete history of GM's LS engines