PCM Flash Programmers / EFI Engine Management

The all-new Flashpaq F5 is the industry leading handheld tuner.  With this easy to use handheld tool, you can add horsepower in minutes without turning a wrench!  The user interface has been redesigned with simplicity and functionality in mind...

The Terminator X Stealth 4150 2x4 EFI systems from Holley features 8, 100LB/HR Fuel Injectors capable of supporting up to 1500 HP naturally aspirated or 1250 HP on forced induction applications. The Terminator X ECU is capable of fuel map self-learning...

*Fits Ford 2V 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 F150, or...

*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...

Basic universal HP EFI system for Naturally Aspirated small block Fords.  Includes Bosch wideband sensor.  Not for TFI specific ignition.  Will require additional ignition input wire harness depending on application. Holley HP EFI systems...

Basic universal HP EFI system for Naturally Aspirated small block Fords.  Includes NTK wideband sensor.  Not for TFI specific ignition.  Will require additional ignition input wire harness depending on application. Holley HP EFI systems...

Have you been looking for a dash solution for your vehicle, but just cannot find anything you like or that is cost effective? No need to look any further as Holley has created a full color touch screen dash that includes sensors for monitoring basic...

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...

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, Avenger and Terminator EFI systems. Each Sensor is hand calibrated to insure accurate readings when used in conjunction with your Holley...

Plug and play for Holley Avenger, Terminator, HP, and Dominator ECU fuel and oil pressure inputs. 1/8" NPTFeatures:•Plug and play for both fuel and oil pressure inputs with Holley EFI systems (Terminator systems monitor fuel pressure...

Plug and play for Holley Avenger, Terminator, HP, and Dominator ECU fuel and oil pressure inputs. 1/8" NPTFeatures:•Plug and play for both fuel and oil pressure inputs with Holley EFI systems (Terminator systems monitor fuel pressure...

Have you been searching for a reason to discard your old noisy mechanical speedometer cable? If so, the Holley GPS Module for our 7" Digital displays should be the next addition to your project vehicle. Featuring a simple plug and play installation, this...

Bosch 4.9 Wideband O2 Sensor Replacement Bosch Wideband Oxygen sensor for Sniper EFI and Terminator X systems. Anti-Seize pre-applied to sensor threads. Service Oxygen Sensor for Sniper EFI Systems Service Oxygen Sensor for Terminator X...

Holley's EFI Crank Trigger Kit is engineered to provide an accurate crank speed & position signal to Holley EFI systems in the most-demanding, high horsepower, racing applications. Crank position is measured every 10 degrees as opposed to every 45...

Shielded Unterminated Magnetic Pick-Up harness for Holley EFI systems  

Designed to plug and play with HyperSpark distributors and Holley EFI main harnesses with an ignition connector, such as part number 558-104. Allows customer to run a "timed sequential" fuel strategy For use with Terminator X EFI systems

CAN Extension Harness (for Racepak and other external CAN drives) 8ft in length. For use with Holley EFI and running directly to a digital dash.  

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...

This harness is designed for the 1986-1995 Ford 5.0 HO Mass Air Flow EFI engines. You must use the 1989-1993 MAF and Distributor. 1986-1988 must add MAF (mass air flow) sensor. 1994-1995 must modify TPS wiring and change distributor. Harnesses do not...