Holley

Introducing the all new LED Light Bar from Holley EFI. The days of low oil dummy lights are behind us! This LED display will revolutionize the way you think about shift lights, and warning indicators...

Plug and play for Holley Avenger, Terminator, HP, and Dominator ECU fuel and oil pressure inputs. Features: Plug and play for both fuel and oil pressure inputs with Holley EFI systems (Terminator...

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...

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

This harness connects the main Holley harness to the injectors. For EV1 style injectors.

Dominator¨ EFI Vehicle Management Systems are intended for all engine applications, from street to unlimited highÐend racing applications. Dominator¨ systems have nearly unlimited...

Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness...

Looking for a alternative for your stock or built late model factory FORD EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are...

Looking for a alternative for your stock or built late model factory FORD EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are...

Looking for a alternative for your stock or built late model factory FORD EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are...

Main Power Harness for Avenger EFI, HP EFI, & Dominator EFI This is required if buying a separate Holley EFI Dominator or HP EFI ECU.    

Looking for a plug and play alternative for your stock or built late model factory EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness...

Looking for a plug and play kit for your GM LS engine? The HP ECU allows you to accurately control the fuel and ignition of your engine plus much more. Got a stock LS engine? Simply download a base...

Looking for a alternative for your stock or built late model factory FORD EFI engine? How about a replacement ECU for your older Holley C950? Holley has you covered. HP EFI ECU and harness kits are...

59 mm grooved Pulley for use with all Holley passenger side LS accessory drive brackets (this Pulley is required for LS bracket application using the “standard” belt spacing AND using a...