Holley

Designed to eliminate jittery tach signals when using points/tach pin B5 to provide RPM to the 7" Standalone Digital Dash

These standalone Terminator X ECU's (Electronic Control Unit) are intended to be used as service components for your Terminator X EFI installation. The Terminator X ECU features real-time fuel learn,...

Holley ECU Mounting Brackets Holley ECU mounting brackets allow you to comfortably install either the Dominator ECU, Holley HP, Terminator X, or Terminator X-MAX under your Mustang's front passenger...

This adds AWESOME functionality to your Holley HP, Dominator, or Terminator X EFI system.The Holley EFI CAN Input/Output Module can be added to Holley EFI HP, Dominator, Terminator X and Terminator X...

This adds AWESOME functionality to your Holley HP, Dominator, or Terminator X EFI system.The Holley EFI CAN Input/Output Module can be added to Holley EFI HP, Dominator, Terminator X and Terminator X...

The Power Distribution Module (PDM) is a cost-effective and optional accessory that isolates the core of your EFI and ignition wiring into one, easy to use location. Simply slide the stripped wire...

Do you need to upgrade your ignition system due to a recent Sniper EFI installation, but have no idea which option is best? Introducing HyperSpark Ignition, from Sniper EFI. The complete system...

Do you need to upgrade your ignition system due to a recent Sniper EFI installation, but have no idea which option is best? Introducing HyperSpark Ignition, from Sniper EFI. The complete system...

Direct upgrade for existing HyperSpark ignition box, featuring a smaller form factor and hotter spark. This low profile box can fit nearly anywhere inside of your engine bay or cockpit. The...

This harness has extra length over the standard Ford harness and is long enough to be installed under the passenger seat on cars such as Fox Mustangs.This harness is for fuel injected small block...

This harness includes the Switched 12v Power Wire, Main Battery Power and Ground, Fuel Pump Relay, Coil - Input wire, and HyperSpark Distributor connector. This harness is braided split wire loom to...

Are you tired of scouring the junkyard for stock ls coil sub harnesses? Introducing the new Holley EFI LS Coil Sub Harness. This coil sub harness is intended to be used with factory LS coils and...

Designed to plug and play with HyperSpark distributors and Holley EFI main harnesses with an ignition connector, such as part number 558-104. Features: Used to run a "timed sequential" fuel...

This is only used on applications using a CD Box, such as an MSD 6AL, while not using timing control.

The Holley EFI Can Adapter/Power Harness adapts two pin Holley main harness CAN connectors to new style 4 pin CAN devices.