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Ignitions and Electrical› Computers, Chips, Modules and Programmers

Holley

Terminator X MPFI Kit GM LS Early Truck

$1,574.95 $1,399.95 Save $175.00

SKU: H00E 550-904T

In Stock
In Stock
Ships by Jun 9
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Holley Terminator X EFI system for LS engines provides complete engine control with self-learning fuel strategies, real-time fuel learning, high impedance injector drivers, an integrated 1bar MAP sensor, and four programmable inputs/outputs for accessories. It includes a USB/CAN tuning cable and requires the free Terminator X Software for setup.

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 550-904T
Weight9.01 lb

Videos

Terminator X Full Install and Overview

Terminator X Full Install and Overview
How To: Install Terminator X EFI on any LS Engine

How To: Install Terminator X EFI on any LS Engine
Silverado Holley Terminator X Integration (Part 1)

Silverado Holley Terminator X Integration (Part 1)
Holley Terminator X Max install for newbies! Easier than you think!

Holley Terminator X Max install for newbies! Easier than you think!

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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