FAST's EZ-EFI System for Jeep vehicles is engineered specifically to work with the unique requirements of 1972-91 Jeep CJ/YJ 4.2L 6-cylinder applications. An exclusive FAST adapter plate for the throttle body eliminates the need to replace or modify manifolds, making this the only truly easy, bolt-on EFI kit for Jeeps on the market today. Using EZ-EFI technology, the system is completely self-tuning; no laptop computer or tuning knowledge necessary. Once installed, the system tunes itself as you drive. Kits include an adapter plate and throttle body, weatherproof ECU, wiring harness, handheld controller, and everything required for installation. This EZ-EFI System is equally suited to both highway and off-road driving.
Compatible with any ignition system, including HEI
Optimized tuning logic created in-house by experienced staff of full-time engineers
Unobstructed bores for more airflow and horsepower
Works with upgraded cams and horsepower modifications
Simple-to-use Setup Wizard and handheld controller (no laptop or tuning experience needed)