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Click HERE to Shop BigStuff Gen4 ProXtreme EFI Systems

Get On-Site & Remote Tuning Services from Our Authorized Dealers

Tech Info, Downloads, & More

Click HERE to Shop BigStuff Gen4 ProXtreme EFI Systems

Get On-Site & Remote Tuning Services from Our Authorized Dealers

Tech Info, Downloads, & More

Home BigStuff Gen4 ProXtreme GEN4 Feature Upgrades
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GEN4 ECU Main Engine and Fuel Injection Harnesses Bundle

From: $719.00

mainengineharness

GEN4 PRO XTREME - MWH & IWH Kit - BASE & CHEVY EV1

GEN4 PRO XTREME - MWH & IWH Kit - BASE & CHEVY EV1 Fuel Injector Clips

mainengineharness

GEN4 PRO XTREME - MWH & IWH Kit - BASE & CHEVY EV6

GEN4 PRO XTREME - MWH & IWH Kit - BASE & CHEVY EV6 Fuel Injection Clips

mainengineharness

GEN4 PRO XTREME - MWH & IWH Kit - BASE & FORD EV1

GEN4 PRO XTREME - MWH & IWH Kit - BASE & FORD EV1 Fuel Injection Clips

mainengineharness

GEN4 PRO XTREME - MWH & IWH Kit - BASE & FORD EV6

GEN4 PRO XTREME - MWH & IWH Kit - BASE & FORD EV6 Fuel Injection Clips

mwh-iwh-kit-ls1-ev1

GEN4 PRO XTREME - MWH & IWH Kit - LS1 & EV1

GEN4 PRO XTREME - MWH & IWH Kit - LS1 & EV1 Fuel Injection Clips

mwh-iwh-kit-ls1

GEN4 PRO XTREME - MWH & IWH Kit - LS1 & EV6

GEN4 PRO XTREME - MWH & IWH Kit - LS1 & EV6 Style Fuel Injection Clips

mwh-iwh-kit-ls2-7

GEN4 PRO XTREME - MWH & IWH Kit - LS2/7 & EV1

GEN4 PRO XTREME - MWH & IWH Kit - LS2/7 & EV1 Fuel Injection Clips

mwh-iwh-kit-ls2-7

GEN4 PRO XTREME - MWH & IWH Kit - LS2/7 & EV6

GEN4 PRO XTREME - MWH & IWH Kit - LS2/7 & EV6 Fuel Injection Clips

mwh-iwh-kit-4-6-5-4l-mod

GEN4 PRO XTREME - MWH & IWH Kit - 4.6/5.4L MOD & EV1

GEN4 PRO XTREME - MWH & IWH Kit - 4.6/5.4L MOD & EV1 Fuel Injector Clips

mwh-iwh-kit-4-6-5-4l-mod

GEN4 PRO XTREME - MWH & IWH Kit - 4.6/5.4L MOD & EV6

GEN4 PRO XTREME - MWH & IWH Kit - 4.6/5.4L MOD & EV6 Fuel Injector Clips

mwh-iwh-kit-5-0l-coyote

GEN4 PRO XTREME - MWH & IWH Kit - 5.0L COYOTE & EV1

GEN4 PRO XTREME - MWH & IWH Kit - 5.0L COYOTE & EV1 Fuel Injector Clips

mwh-iwh-kit-5-0l-coyote

GEN4 PRO XTREME - MWH & IWH Kit - 5.0L COYOTE & EV6

GEN4 PRO XTREME - MWH & IWH Kit - 5.0L COYOTE & EV6 Injector Connectors

mainengineharness

GEN4 PRO XTREME - MWH & IWH Kit - CHEVY UNIVERSAL COP & EV1

GEN4 PRO XTREME - MWH & IWH Kit - CHEVY UNIVERSAL COP & EV1

mainengineharness

GEN4 PRO XTREME - MWH & IWH Kit - CHEVY UNIVERSAL COP & EV6

GEN4 PRO XTREME - MWH & IWH Kit - CHEVY UNIVERSAL COP & EV6 BS4-006-014 

mainengineharness

GEN4 PRO XTREME - MWH & IWH Kit - FORD UNIVERSAL COP & EV1

GEN4 PRO XTREME - MWH & IWH Kit - FORD UNIVERSAL COP & EV1 BS4-006-015 

mainengineharness

GEN4 PRO XTREME - MWH & IWH Kit - FORD UNIVERSAL COP & EV6

GEN4 PRO XTREME - MWH & IWH Kit - FORD UNIVERSAL COP & EV6 BS4-006-016

    Category: GEN4 Feature Upgrades
    Share: Facebook Twitter Tumblr Linkedin
    Additional information

    GEN4 PRO XTREME - MWH & IWH Kit - BASE & CHEVY EV1

    Weight 5 lbs
    Dimensions 15 × 15 × 6 in

    GEN4 PRO XTREME - MWH & IWH Kit - BASE & CHEVY EV6

    Weight 5 lbs
    Dimensions 15 × 15 × 6 in

    GEN4 PRO XTREME - MWH & IWH Kit - BASE & FORD EV1

    Weight 5 lbs
    Dimensions 15 × 15 × 6 in

    GEN4 PRO XTREME - MWH & IWH Kit - BASE & FORD EV6

    Weight 5 lbs
    Dimensions 15 × 15 × 6 in

    GEN4 PRO XTREME - MWH & IWH Kit - LS1 & EV1

    Weight 5 lbs
    Dimensions 15 × 15 × 5 in

    GEN4 PRO XTREME - MWH & IWH Kit - LS1 & EV6

    Weight 5 lbs
    Dimensions 15 × 15 × 6 in

    GEN4 PRO XTREME - MWH & IWH Kit - LS2/7 & EV1

    Weight 5 lbs
    Dimensions 15 × 15 × 6 in

    GEN4 PRO XTREME - MWH & IWH Kit - LS2/7 & EV6

    Weight 5 lbs
    Dimensions 15 × 15 × 6 in

    GEN4 PRO XTREME - MWH & IWH Kit - 4.6/5.4L MOD & EV1

    Weight 15 lbs
    Dimensions 15 × 15 × 6 in

    GEN4 PRO XTREME - MWH & IWH Kit - 4.6/5.4L MOD & EV6

    Weight 5 lbs
    Dimensions 15 × 15 × 5 in

    GEN4 PRO XTREME - MWH & IWH Kit - 5.0L COYOTE & EV1

    Weight 5 lbs
    Dimensions 15 × 15 × 6 in

    GEN4 PRO XTREME - MWH & IWH Kit - 5.0L COYOTE & EV6

    Weight 5 lbs
    Dimensions 15 × 15 × 6 in

    GEN4 PRO XTREME - MWH & IWH Kit - CHEVY UNIVERSAL COP & EV1

    Weight 5 lbs
    Dimensions 15 × 15 × 6 in

    GEN4 PRO XTREME - MWH & IWH Kit - CHEVY UNIVERSAL COP & EV6

    Weight 5 lbs
    Dimensions 15 × 15 × 6 in

    GEN4 PRO XTREME - MWH & IWH Kit - FORD UNIVERSAL COP & EV1

    Weight 5 lbs
    Dimensions 15 × 15 × 6 in

    GEN4 PRO XTREME - MWH & IWH Kit - FORD UNIVERSAL COP & EV6

    Weight 5 lbs
    Dimensions 15 × 15 × 6 in

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    Product categories

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    BigStuff is an American-based company focused on the design, manufacture, and marketing of state-of-the-art electronic engine and powertrain controllers for the performance aftermarket.

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    🥳 It's PRI week! Come see us in booth #1539 (green hall) and check out ALL of the state-of-the-art features our powe#BigStuffTPMffTPM Gen4 Pro Xtreme ECU has to offer, plus meet Ben Davidow and get your tech questions answered by the expert himself! … See MoreSee Less

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