Sniper and Terminator X Components

Sniper and Terminator X Components

We originally created this page to list upgrade and replacement components for the popular Sniper EFI systems. However, when Terminator X arrived, it turns out that they share many of the same components--particularly on the Terminator X Stealth throttle bodies. Don't see it here? Not clear if it fits both? Use the fly-out at right to get support or visit our Contact Us page!

System Enhancements

Replacement Sensors and IAC Motor

Replacement Wiring Harnesses and Wiring Tools

Hardware and Gaskets

Gauges and Displays

Fuel System

Ignition Components


Replacement Terminator X ECUs and Upgrades

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Clamp-On Oxygen Sensor Bung

Just because you're a decent mechanic doesn't mean that you have a degree in welding--nor does it m..

$44.61 $40.15

Throttle Position Sensor

This Throttle Position Sensor (TH191 | 543-111) is the replacement for the TPS on the following thro..

$49.95 $44.95

Demon Throttle Cable Adapter Lever

We offered this throttle lever extender for years and it did a good job. But we really think that t..

$21.86 $19.67

Sniper EFI Throttle Lever Extension

Several customers  have mentioned that their Holley Sniper EFI System's linkage has a very aggr..

$16.99 $18.29

Demon Throttle & Kickdown Cable Bracket

The original Sniper EFI System includes these throttle and kickdown cable brackets--the Super Sniper..

$35.00 $31.50

Sniper EFI Installation Kit

When Holley first released the Sniper EFI System they included these components in the kit.  Al..

$41.90 $37.71

CAN Extension Harness for Sniper and Terminator X EFI Systems

Need to extend the CAN bus harness on your Sniper or Terminator X EFI System?  This harness wil..

$36.62 $32.95

Fuel Tank System Installation Kit for Sniper EFI System

If you purchased a Holley Sniper, Tanks Inc, or FiTech Fuel Tank System to use with your Holley Snip..

$149.94 $134.95

OE-Style Tank Module Installation Kit for Dual Tanks

Yes!  It is possible to install Holley's OE-style fuel tank modules in dual tank applications.&..

$149.95 $134.95

OE-Style Tank Module Installation Kit for Sniper EFI System

If you purchased a Holley OE-Style Fuel Tank Module to use with your Holley Sniper or similar EFI Sy..

$51.61 $50.95

Sniper EFI Air Cleaner Drop Base

Not all air cleaner drop-bases are created equally.  Some simply do not have room to accommodat..

$35.59 $39.03

In-Tank Retrofit Fuel Module Installation Kit

If you purchased one of Holley's In-Tank Retrofit Fuel Tank Modules or the Holley Sniper EFI Die-Cas..

$55.54 $61.95

Sniper EFI 2x4 Linkage Kit

If you are installing the Sniper 4150 2x4 EFI System as a replacement to existing carburetors you ma..

$66.61 $59.95

Sniper EFI System Replacement SD Card

Need a new SD card for your Sniper EFI System?  This is exactly what you're looking for.The Sni..

$19.38 $17.44

Connector Harness, Sniper EFI to Holley Dual-Sync Distributor

If you are using a Holley Dual-Sync Distributor with your Sniper EFI System this adapter harness mak..

$38.27 $34.44