PCM Flash Programmers / EFI Engine Management

Main Power Harness for Avenger EFI, HP EFI, & Dominator EFI  

Universal MPFI Main Harness for HP EFI & Dominator EFI  

Brand New from Holley EFI comes the Sniper II system. This system is exactly what your carb to EFI conversion needs on your small block Ford. The original Sniper system had RFI interferance...

HP Tuners VCM Suite MPVI4 Credit Pro Packages The legacy continues … and now it is bigger, better, and faster! Built for enthusiasts and professionals, MPV14 is the fastest most sophisticated OBDII...

Introducing the 1986-93 Ford Mustang 5.0L Air Charge / Intake Air Temperature extension harness. This extension harness lets you move your ACT/IAT sensor from the lower intake manifold to before...

This product allows you to mount a Holley LCD Touch Screen 3.5" Digital Dash into the factory center dash vents. It is manufactured using ABS materials via a 3D Printer. Paint to match interior...

Holley EFI ECU mounting brackets (Select which ECU above), allowing you to safely mount your ECU under the seat of a Foxbody Mustang. 554-157 Easy Installation of Holley HP, Terminator X, or...

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...