Multi-Port EFI Kits

Holley Terminator X GM LS Standalone ECU & Wire Harness 550-904 - 24x/Multec 2 Take control of your LS engine with Terminator X! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of your engine,...

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...

FiTech Ultimate LS Truck 500HP EFI Kit 70006 FiTech Ultimate LS Instructions Complete Self Tuning Induction Systems for LS engines designed for the do-it-yourself Hot Rodder to the professional EFI tuner! This system is ready to go with everything needed...

Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-931 - 58x/EV6/DBW Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of...

Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-927 - 24x/Multec 2/Trans Control/DBW Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have...

Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-934 - 24x/EV6/Trans Control/DBW Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete...

FiTech 750HP LS3/L92 102mm Ultimate EFI System w/ Transmission Control 70014 (Forced Induction Compatible) FiTech Ultimate LS Instructions Complete Self Tuning Induction Systems for LS engines designed for the do-it-yourself Hot Rodder to the...

Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-920 - 58x/EV1/Trans Control Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control...

Holley Terminator X Max GM LS Standalone ECU & Wire Harness 550-929 - 24x/EV1/DBW Take control of your LS engine with Terminator X Max! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of your...

FiTech Ultimate LS Truck 750HP EFI Kit W/ Transmission Control 70009 FiTech Ultimate LS Instructions Complete Self Tuning Induction Systems for LS engines designed for the do-it-yourself Hot Rodder to the professional EFI tuner! This system is ready to...

Holley EFI CAN Input/Output Module Kit w/Harness 554-165 The Holley EFI CAN Input/Output Module can be added to Holley EFI HP, Dominator, Terminator X and Terminator X Max EFI installation. This CAN module will add eight inputs and eight outputs to the...

Holley Terminator X GM LS Standalone ECU & Wire Harness 550-910 - 58x/EV1 Take control of your LS engine with Terminator X! Don't settle for a junkyard ECU with a cumbersome tuning interface when you can have complete control of your engine,...