• FST304003.jpg
    • FST304003.jpg

    FAST XFI Street Engine Management Upgrade Kit 304003

    Vendor: FAST
    Part Number: 304003
    $784.95

    Currently out of stock.

    Not sure it fits your vehicle?
    Email sales@berryperformancesales.com with your year, make, model and engine, and we'll help you check fitment before you order.
    Fast Fulfillment: In-stock orders typically ship within 1 to 2 business days.
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    Product DetailsFAQReviewsRelated Products
    The engineers at FAST® designed this 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 also 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 be used to tune an engine whose characteristics are not ideal for the self-tuning features EZ-EFI provides. The XFI Street Engine Management System has data logging capability when connected to a laptop. The unit is offered in kits with an EZ four-injector throttle body and with or without a multi-port harness. It is intended only for naturally aspirated engines.


    FAST XFI Street Engine Management Upgrade Kit 304003


    Specifications:

    Description_SHO XFI Strt Upgrade
    Description_INV XFI Street Upgrade Kit
    Description_ASC See 304000 for XFI Street Engine Management System with Multi-Port Fuel Injection harness.
    Description_ASC See 304001 for XFI Street Engine Management System with 4150-Flange EZ-EFI Fuel Throttle Body
    Description_DES XFI Street Engine Management Upgrade Kit
    Description_SHP No
    Description_ASM Applications with existing EZ-EFI Fuel Throttle Body EFI System or EZ-EFI Fuel Multi-Port Fuel Injection System.
    Description_EXT The XFI Street Upgrade Kit contains everything needed to take your EZ-EFI Fuel to the next level. Including a new ECU, C-Com software and a communication cable, this kit is the most cost-effective way to make your EZ-EFI laptop tunable.
    Description_MKT The engineers at FAST® designed this 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 also 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 be used to tune an engine whose characteristics are not ideal for the self-tuning features EZ-EFI provides. The XFI Street Engine Management System has data logging capability when connected to a laptop. The unit is offered in kits with an EZ four-injector throttle body and with or without a multi-port harness. It is intended only for naturally aspirated engines.
    Description_FAB Converts an EZ-EFI Fuel to a fully laptop tunable fuel injection system.
    Description_FAB Perfect for custom individual runner induction systems
    Description_FAB Easy-to-use software for both novice & experienced tuners
    Description_FAB Data logging makes tuning & troubleshooting easier
    Description_FAB Advanced diagnostics help maintain peak performance
    Description_FAB Direct plug-in compatibility w/ EZ-EFI Fuel main wiring harness, multi-port fuel injection wiring harness and 4150-flange throttle bodies.
    Description_DEF Fuel Injection System


    Shipping Policy
    • Free shipping on orders over $99 (excludes freight shipments).
    • In-stock orders typically ship within 1 to 2 business days. Weekend and holiday orders are processed the next business day.
    • Orders ship from Defiance, Ohio and a nationwide network of warehouses and manufacturers.
    • Items showing an ETA are not in stock yet. ETAs come from the manufacturer and can change.
    • No P.O. Boxes. International orders need a shipping quote, so email us first.

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    Return Policy
    • 30-day return window from the ship date. Returns must be approved first; email sales@berryperformancesales.com with your order number.
    • Items must be unused, complete and in the original packaging.
    • A 20% restocking fee applies, and return shipping is paid by the buyer.
    • Not returnable: installed or modified parts, opened or used programmers and tuners, custom orders, Open Box, and Clearance or Final Sale items.
    • Damaged, defective or incorrect items must be reported within 48 hours of delivery with photos.

    Read the full Return Policy
    Disclaimer

    All products are sold for off-road use only unless otherwise specified. Buyer assumes all responsibility for installation and operation. Seller is not liable for any incidental, indirect, or consequential damages — including engine failure, labor costs, or vehicle downtime — resulting from the use of any product sold.

    By making a purchase from Berry Performance Sales, you acknowledge and agree to abide by the terms and conditions of these Policies.

    For any questions or concerns, please contact us — we’re always happy to help.

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