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Ignitions and Electrical› Computers, Chips, Modules and Programmers

Holley

TERM X MPFI,FORD MOD 2&4V,SMARTCOILS,EV1

$2,193.95 $1,992.25 Save $201.70

SKU: H00E 550-1220

In Stock
In Stock
Ships by Jun 8
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Holley 550-1220 Terminator X kit is a plug-and-play EFI system designed for Ford Modular 2V and 4V engines, commonly found in 1996-2004 Mustangs, 1995-2006 F-150s, and 2002-2005 Explorers. It supports both 4.6L and 5.4L power plants, offering real-time fuel learning, high impedance injector drivers, and an integrated 1-bar MAP sensor. The system includes four programmable inputs and outputs for controlling various engine functions.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandHolley
Part NumberH00E 550-1220
Weight7.6 lb

Videos

Holley Terminator X 4v Mod Motor Install

Holley Terminator X 4v Mod Motor Install
CLEAN Holley Terminator X Modular Motor Install Overview

CLEAN Holley Terminator X Modular Motor Install Overview
The vortech 2v is back! Holley terminator x efi.

The vortech 2v is back! Holley terminator x efi.
Holley efi install on 99-04 mustang and review

Holley efi install on 99-04 mustang and review

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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