Sniper, Sniper 2, and Terminator X Components

Sniper, Sniper 2, 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. And now we are excited to offer components and accessories for the new Holley Sniper 2.  Don't see it here? Not clear if it fits your EFI system? Use the fly-out at right to get support or visit our Contact Us page!

Are you looking for service components for the original Terminator EFI System (the one that pre-dated Terminator X)? You can find those here.

Note:  References to "Sniper" without a numeral should be assumed to reference the original Sniper.

System Enhancements

Replacement Sensors and IAC Motor

Replacement Wiring Harnesses and Wiring Tools

Hardware and Gaskets

Gauges and Displays

Fuel System

Fuel Injectors

Ignition Components


Transmission Control

Upgrade Kits and Adapter Harnesses

Replacement Terminator X ECUs and Upgrades

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10 Pin I/O Harness, Sniper TBI

Duplicate of the original 10-pin I/O harness that came with the Sniper EFI System...

$62.58 $56.32

6 Pin I/O Harness, Sniper 2 TBI

Replacement for the original 6-pin I/O harness that came with the Sniper 2 EFI System...

$44.39 $39.95

10-Pin Connector Kit for Sniper EFI 10-Pin Harness

This 10-pin metripack connector kit lets you create your own custom wiring harness for your Sniper I..

$27.10 $24.39

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..

$47.09 $42.38

Sniper to Sniper 2 Adapter Harness

In the event that you already have a vehicle that is fully wired for the Sniper 1 but want to instal..

$55.50 $49.95

Sniper & Sniper 2 EFI 3.5 Touch Screen LCD

Did the unthinkable happen to your original Sniper 3.5-inch Touchscreen LCD Display? Slammed in the..

$278.00 $249.95

Throttle Position Sensor

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

$55.50 $49.95

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..

$28.69 $25.82

Sniper EFI Throttle Lever Extension

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

$22.94 $20.65

Demon Throttle & Kickdown Cable Bracket

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

$40.19 $36.17

Sniper EFI Installation Kit

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

$45.94 $41.35

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 $32.96

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..

$192.79 $173.51

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.&..

$206.99 $186.29

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..

$70.06 $63.05