M.F. Kustoms, L.L.C.

1996-1998 Ford Mustang MFAdapter (Holley Terminator X / X Max) Dual Wideband

1996-1998 Ford Mustang MFAdapter (Holley Terminator X / X Max) Dual Wideband

This adapter allows you to integrate a standalone engine management system with your project while..

$1,030.00

1996-1998 Ford Mustang MFAdapter Main Harness V2 (Holley with Trans Control)

1996-1998 Ford Mustang MFAdapter Main Harness V2 (Holley with Trans Control)

These are made to order, and orders will take approximately 4-6 weeks to ship. Please note that any ..

$425.00

1996-1998 Ford Mustang MFAdapter Main Harness V2 (Holley without Trans Control)

1996-1998 Ford Mustang MFAdapter Main Harness V2 (Holley without Trans Control)

These are made to order, and orders will take approximately 4-6 weeks to ship. Please note that any ..

$375.00

1996-1998 Ford Mustang MFAdapter Sub-Harness V2 (Holley HP/Dominator)

1996-1998 Ford Mustang MFAdapter Sub-Harness V2 (Holley HP/Dominator)

These are made to order, and orders will take approximately 4-6 weeks to ship. Please note that any ..

$275.00

1996-1998 Ford Mustang MFAdapter Sub-Harness V2 (Holley Terminator X)

1996-1998 Ford Mustang MFAdapter Sub-Harness V2 (Holley Terminator X)

These are made to order, and orders will take approximately 4-6 weeks to ship. Please note that any ..

$275.00

Cam and Crank Harness

Cam and Crank Harness

** This product has been retired as we are unable to get the cam sensor anymore. **Introducing our F..

$135.00

Consulting Services

Consulting Services

Welcome to our Automotive EFI Consulting Service, designed to empower enthusiasts and in optimizing..

$65.00

E4OD/4R100 Transmission Harness

E4OD/4R100 Transmission Harness

As of January 2nd, 2026, we have put this harness on hold for production. We have been informed that..

$350.00

Ford 60 Pin EEC-IV Header

Ford 60 Pin EEC-IV Header

We’ve recreated the Ford 60-pin EEC-IV header connector, originally used on Ford’s engine control sy..

$55.00

Holley 558-128 Upgrade

Holley 558-128 Upgrade

*** Notice: This service is to only be purchased after you have sent in your harness and have been c..

$175.00

Holley ECU Extender

Holley ECU Extender

This product allows you to move your Holley ECU to a location of your choice without modifying your ..

$300.00

Holley ECU Testing

Holley ECU Testing

Holley ECU Recovery Service - Firmware Reflash ECU not powering on after a failed firmware update? ..

$45.00

Holley EFI - EV6/EV14 Injector Harness

Holley EFI - EV6/EV14 Injector Harness

Introducing our customer Ford EV6/EV14 Injector Harness for Holley EFI,.Key Features:Tailored for Fo..

$175.00

JimStim to Holley Benchtop Harness

JimStim to Holley Benchtop Harness

This service allows you to hookup your Holley ECU to a JimStim Wheel Simulator.Features: Dual CAN Bu..

$175.00

M.F. Kustoms Sticker

M.F. Kustoms Sticker

This is a small sticker.... 1" x 2.5"Note:Item will be shipped out regular USPS post if you select t..

$1.50

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