FAST® XFI Street™ EFI System with EZ-EFI® Throttle Body

Memphis, TN – The latest fuel injection kit from FAST® combines the advanced PC tunability of the XFI Street™ ECU with the proven reliability and performance of the EZ-EFI® throttle body unit.

With a self-learning capability similar to the XFI Sportsman™ and XFI 2.0™ Fuel Injection Systems, the XFI Street™ EFI System provides a cost-effective option for those who don’t need ECU controlled ignition timing but do want complete fuel control. Utilizing the included C-COM® software that is easy to use for both novice and experienced tuners, the XFI Street™ ECU can easily deal with even the most challenging engine combinations and even features data logging capability when connected to a laptop. The advanced diagnostics also help to identify problems and maintain peak engine performance.

With the proven reliability and performance of the EZ-EFI® Throttle Body, up to 650 HP naturally aspirated engines can benefit from its fantastic throttle response and smooth power delivery. The unit bolts to any 4150-style intake manifold for an easy plug-and-play installation. Additionally, with its integrated four injector design and premium quality wire harness, throttle body reliability is assured.

About FAST®

In 2001, FAST® was acquired by the COMP Performance Group™ and moved its headquarters to Memphis, TN, to become the popular electronics company that we know today. After more than a decade in the performance aftermarket industry, FAST® is the recognized leader in advanced EFI technology. Now, not only does FAST® offer the components to adapt virtually any engine to fuel injection, it is also an emerging force in the ignition market. With the latest in easy-to-use electrical components, the experts at FAST® have everything that you need to make high-tech horsepower. 

Additional information about FAST® and its products can be found at or at 1.877.334.8355 M-F 7am-8pm CST. Also visit us on Facebook at, on Twitter at or on YouTube at