FAST Multiport Retro-Fit EZ-EFI Kit

Allows owners of existing factory or aftermarket multi-port fuel injected applications to experience the benefits of an EZ-EFI Fuel system with no limit on horsepower because the system is based on each customer’s supplied injectors. The kit comes with everyting needed to convert factory or aftermarket EFI systems into a complete FAST EZ-EFI Fuel system.

Add Proven, Self Tuning EZ-EFI To Existing OE or Aftermarket Multi-Port EFI Engines; GM TPI, Ford 5.0L & More

The wiring harness is completely pre-wired and labeled for a simple installation. It includes connectors for early style GM sensors (coolant temp, air temp, TPS, MAP and IAC) such as those found on a GM Tuned Port engine. All of these sensors are available from FAST individually or in kit form. FAST also offers a Ford style TPS that is directly compatible with the harness. Or the harness can be modified to accept any 0-5V TPS. The rest of the sensors need to be GM style parts. Wiring adapters are available from FAST to accommodate a later style GM TPS (round, 3 pin connector) or IAC (in-line, 4 pin connector). Also available are a remote mounted IAC kit and an adapter for installing an early GM IAC on a Ford throttle body.

The harness is wired for eight traditional Minitimer style injectors.

Injector adapters or connector kits are available from FAST to adapt the harness to newer USCAR style injectors. The EZ-EFI system must be used with high impedance injectors. A wide range of high impedance injectors are available from FAST.

The EZ-EFI system must be used with a vacuum referenced fuel pressure regulator.

Returnless fuel systems cannot be used. FAST offers an adjustable regulator that is ideally suited for use with EZ-EFI. Various fuel system kits are also available.

FAST’s Warranty

For information on FAST’s warranty terms and conditions, please click here.

Purchase Disclaimer: You are hereby informed and warned to check your local, state, and federal laws before buying and installing these or any aftermarket parts to be sure whether usage is in violation. All installation-risk and use-risk is borne by the end-user and installer of these parts. Bolt Motorsports does not condone the use of emission defeat devices for any vehicles used on public streets or roadways. Bolt Motorsports will not tamper, remove, disable, or bypass emissions equipment on a motor vehicle in accordance with 40 CFR Section 86.1854.12(a)(3), Clean Air Act 40 CFR 1068.101(b). This includes software, known as tunes, that reprogram a motor vehicles electronic control module to alter engine performance and enable the removal of filters, catalysts, and other critical emissions controls. In accordance with local laws and regulations, Bolt Motorsports will not ship parts to locations where usage or installation of said part would be in violation of the aforementioned acts.