Street News

FAST® XFI Street™ Engine Management System


The latest fuel delivery system from FAST is a tunable ECU based on EZ-EFI Fuel hardware and harnessing, but with learning capability similar to XFI Sportsman and XFI 2.0 options. FAST engineers have designed an all-new laptop-tunable ECU to appeal to customers and dealers with simple EFI needs, but who prefer the greater flexibility afforded by laptop tuning. The XFI Street Engine Management System provides a cost-effective option for those customers who don’t need the most high-end system, but want complete control. Since XFI Street uses the same wiring as the EZ-EFI, it could easily be installed in place of an existing EZ-EFI ECU. Utilizing included C-Com software, XFI Street can easily deal with even the most challenging engine combinations. The XFI Street Engine Management System has data logging capability when connected to a laptop. It is intended only for naturally aspirated engines. The unit is offered in kit form with a multi-port harness or with an EZ-EFI four-injector throttle body and harness. A retrofit kit is also available for adding an XFI Street ECU to an existing EZ-EFI installation.

Quick Facts Product:

FAST XFI Street Engine Management System Part Number:

  • #30400 (Multi-port)
  • #304001 (w/ EZ-EFI Throttle Body)
  • #304003 (Retrofit Kit)

Street Price: $621.09 – $1,849.99

The FAST® XFI Street™ Engine Management System is a laptop-tunable ECU based on EZEFI® hardware, with additional learning capability

The FAST XFI Street Engine Management System is a laptop-tunable ECU based on EZEFI hardware, with additional learning capability

Features & Benefits:

  • Perfect for custom individual runner induction systems
  • Easy-to-use software for novice & experienced tuners
  • Data logging makes tuning & troubleshooting easier
  • Advanced diagnostics help maintain peak performance
  • Direct plug-in capability w/ EZ-EFI Fuel wiring harness & throttle bodes; only need to replace ECU to upgrade system
About Jefferson Bryant (223 Articles)
A life-long gearhead, Street Tech Magazine founder and editor Jefferson Bryant spends more time in the shop than anywhere else. His career began in the car audio industry as a shop manager, eventually working his way into a position at Rockford Fosgate as a product designer. In 2003, he began writing tech articles for magazines, and has been working as an automotive journalist ever since. His work has been featured in Car Craft, Hot Rod, Rod & Custom, Truckin’, Mopar Muscle, and many more. Jefferson has also written 5 books and produced countless videos. Jefferson operates Red Dirt Rodz, his personal garage studio, where all of his magazine articles and tech videos are produced. You can follow Jefferson on Facebook (Jefferson Bryant), Twitter (71Buickfreak), and YouTube (RedDirtRodz).

Leave a comment

Your email address will not be published.


This site uses Akismet to reduce spam. Learn how your comment data is processed.