PCM Flash Programmers / EFI Engine Management

*Fits Ford 4V Mod Motor w/ Stock Coils and EV1 injectors   Introducing Terminator X and X Max Kits for the Modular Ford engine. These new kits will plug and play with either 2V or 4V Mod Motors commonly found in 1996-2004 Mustangs, 1995-2006...

The Holley EFI Pro Dash measures 13.44" wide, 5.81" tall and 1.25" deep. The Pro Dash is completely customizable for use in a variety of motorsports applications. It features a 12.3" 1280x480 resolution low glare, high brightness, high contrast, full...

This 3.5" Touch Screen LCD Handheld Controller gives you access to a wide range of tuning options. Additionally this display can be used as a fully customizable data monitor! With this 3.5" display your system vitals can be viewed with a quick glance!...

Replacement Holley EFI NTK Wide band Oxygen sensor. This sensor is a direct replacement for Holley HP, Dominator, Avenger and Terminator EFI systems. Each Sensor is hand calibrated to insure accurate readings when used in conjunction with your Holley EFI...

Replacement Holley EFI, Bosch Wide Band Oxygen Sensor.This sensor is a direct replacement for Holley HP, Dominator and Avenger EFI systems. Each Sensor is hand calibrated to insure accurate readings when used in conjunction with your Holley EFI system...

Holley EFI ECU mounting brackets, allowing you to safely mount your ECU under the seat of a Foxbody Mustang. Easy Installation of Holley HP, Terminator X, or Terminator X Max ECU in Your Mustang Fits all 79-04 passenger seat mounting holes (hardware...

Ford V8 Injector Harness for Ford USCAR / EV6 style Fuel Injectors (Evenly Spaced) Works with Holley EFI systems Terminator X, X Max, HP and Dominator main harnesses. Eliminates the need for injector adapters, just swap injector harnesses and go!

Great for applications requiring minimal Input/output wiring. 4 Output Wires 4 Input Wires Connector J1A/B Inputs/Outputs Auxiliary Harness for Terminator X, HP, and Dominator EFI systems

Used when adding a second wide band oxygen sensor to a Dominator EFI installation. For use with Bosch 4.2 and NTK wideband sensors. Features: J2A Connector #2 Wide band oxygen sensor harness (Fully Terminated) 23 user programmable input wires with...

The CAN to USB communication cable provides the user with real tuning time access to the ECU. This cable can be used with Holley EFI, Sniper EFI, and Terminator X Tuning Software. Which can be downloaded for free from the Support section of our...

Easy to install with one touch lever. PVC suction mount arm adjusts vertically and provides 360 degree rotation. 

The new Gate-Way for the 1999-2004 Mustang GT & Cobra is your connection to all the great feature and tuneability of the Holley EFI ECUs without losing the major functions of the factory dash and accessories of the Mustang GT& Cobra. The...

For use on 1999-2004 4.6L and 5.4L 4-valve engines Tired of jumping through hoops and having to play tricks with the factory ECU?  Welcome to a better way.  Is you cam too wild?  Power Adders?  Bring'em on.  Holley EFI has got...

4" Color Touch Screen Display w/ Ambient Light Sensor Improves Horsepower, Torque, Overall Performance and More Includes Pre-Configured SCT Tunes Holds up to 10 Custom Tunes Reads/Clears DTC Trouble Codes Built-In Wi-Fi for Easy Updating Built-In...

The X4 Power Flash arrives Pre-Loaded with DYNO Proven tune files that INCREASE HORSEPOWER and TORQUE! Programming your vehicle with one of SCT's pre-loaded performance or fuel economy tune files is as easy as 1-2-3. Simply plug the OBDII connector...