Multi-Port EFI Kits

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 LS Gen IV Standalone ECU & Wire Harness /Trans Control- 58x Late Truck w/6L80 - 550-918-6 24x Crank - 1x Cam - Multec 2 Injectors - 6L80/90 Transmission Control - 3.5-inch Touchscreen Take control of your LS engine and...

Holley Terminator X Max GM LS Gen IV Standalone ECU & Wire Harness /Trans Control- 58x Late Truck w/6L80 - 550-918-6 58x Crank - 4x Cam - EV6 Injectors - 6L80/90 Transmission Control - 3.5-inch Touchscreen Take control of your LS engine and 6L80...

Holley Terminator X Max GM LS Gen IV Standalone ECU & Wire Harness /Trans Control/DBW - 58x Late Truck w/6L80 - 550-928-6 58x Crank - 4x Cam - EV6 Injectors - Drive-By-Wire Throttle Body and 6L80/90 Transmission Control - 3.5-inch...

Holley EFI GM F-Body T-56 Transmission Harness for Terminator X Max ECU   F-Body T-56 Transmission Harness for use with Terminator X Max ECU's on V3 Build 100, or Holley EFI V6 Build 300, or later.   F-Body T-56 Transmission Harness -...

Holley EFI GM T-56 Magnum Transmission Harness for Terminator X Max ECU  T-56 Magnum Transmission Harness for use with Terminator X Max ECU's on V3 Build 100, Holley EFI V6 Build 300, or later.   T-56 Magnum Transmission Harness - Terminated...

FiTech Ultimate Rebel LS 1000HP 102mm EFI System Cable Drive w/ Trans Control 70093 Elevate your LS engine conversion with the Ultimate Rebel LS EFI System – a perfect fusion of aesthetics and performance. Experience the power of modern...

FiTech Ultimate Rebel LS 1000HP 102mm EFI System Cable Drive w/o Trans Control 70092 Elevate your LS engine conversion with the Ultimate Rebel LS EFI System – a perfect fusion of aesthetics and performance. Experience the power of modern...

FiTech Ultimate Rebel LS 750HP 102mm EFI System Cable Drive w/ Trans Control 70091 Elevate your LS engine conversion with the Ultimate Rebel LS EFI System – a perfect fusion of aesthetics and performance. Experience the power of modern...