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Air and Fuel› Fuel Injection Systems and Components - Electronic

Holley

TERMXSTEALTH4150,4INJ,LS58X,GOLD,TRANS

$3,172.95 $2,874.44 Save $298.51

SKU: H00E 550-1065

In Stock
In Stock
Ships by Jun 7
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Holley Terminator X Stealth 4150 EFI system is a fuel delivery/engine management system designed for GM LS engines. It features four 100LB/HR fuel injectors, supporting up to 650 HP naturally aspirated or 600 HP on forced induction applications. The Terminator X ECU includes self-learning fuel maps and integrated ignition timing control for improved idle stability, drivability, and horsepower. This system offers transmission kickdown provisions for GM TH350/400, 200R4/700R4, and Ford C4/C6 applications, with Terminator X Max kits providing plug-and-play transmission control for GM 4L60 and 4L80 transmissions.

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 550-1065
Weight18.15 lb

Videos

Ditch the Carb and Go EFI with Holley Terminator X Stealth 4500 and 4150

Ditch the Carb and Go EFI with Holley Terminator X Stealth 4500 and 4150
Holley EFI Sniper Stealth 4150

Holley EFI Sniper Stealth 4150
Terminator X Full Install and Overview

Terminator X Full Install and Overview
Holley Terminator Stealth EFI Installed - 1968 Chevelle SS

Holley Terminator Stealth EFI Installed - 1968 Chevelle SS
Holley Terminator Stealth EFI

Holley Terminator Stealth EFI
Terminator X Stealth 4150 Throttle Body EFI system

Terminator X Stealth 4150 Throttle Body EFI system
Holley EFI Terminator X Stealth 4150 Unboxing!

Holley EFI Terminator X Stealth 4150 Unboxing!
I am Amazed! Install & Test Holley Terminator X Stealth on my Chevy K10

I am Amazed! Install & Test Holley Terminator X Stealth on my Chevy K10

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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