Dominator EFI Kit Universal Vehicle Management System w/COP 550-654 Fits Domestic V8 engines, such as conventional push rod Chevrolet and Chrysler engines with Coil on Plug ignition and EV1 Injectors Dominator® EFI Vehicle Management Systems...

Holley Terminator X / X Max EFI Bluetooth Module 558-483  Unlock the full potential of your Terminator X EFI system with the Terminator X EFI Bluetooth Module - the ultimate tool for wireless tuning and real-time engine monitoring. This advanced...

Holley EFI LS (58X/4X) Engine Main Harness Extended for HP EFI/Dominator EFI 558-134 LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI These harnesses are designed to fit most 24x and 58x LS engines, from 1997-2012. They are a...

Holley EFI LS (58X/4X) Engine Main Harness for HP EFI/Dominator EFI 558-103 LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI This harness has been designed to interface with 58x crank and 4x cam sensors. These engines are commonly...

HP Tuners CORE ECU I/O Expansion Harness COR-HAR-005 This harness provides a flying lead solution to customers who want to add additional I/O to their install. Easily wire-in extra sensors, cooling fans, electric pumps, and more.

HP Tuners Input/Output Expansion Harness I/O HARNESS          

HP Tuners 15' Flying Lead Wiring Harness COR-HAR-003

HP Tuners Gen IV LS Drive-by-Wire EFI Wiring Harness 58x COR-HAR-002

HP Tuners Gen III LS Drive-by-Cable EFI Wiring Harness 24x COR-HAR-001

HP Tuners Gen III/IV LS Core ECU COR-ECU-000 Introducing HP Tuners standalone engine management solution, delivering superior control overyour vehicle's powerplant.CORE ECU is designed for all levels of LS swaps and high-performance motorsports builds...

Holley Terminator X Max GM Gen V LT4 Standalone ECU & Wire Harness Direct Injection Kit Late 550-1634-6 GM LT Drive-by-Wire Throttle Body and GM 6L80E and 6L90E Transmission Control Take control of your GM Gen V LT4, LT1, L83, or L86...

Holley Terminator X Max GM Gen V LT4 Standalone ECU & Wire Harness Direct Injection Kit Early 550-1633-6 GM LT Drive-by-Wire Throttle Body and GM 6L80E and 6L90E Transmission Control Take control of your GM Gen V LT4, LT1, L83, or L86 engine...