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MSD Electric Fuel Pump Harn./Relay Kit 30A 89618
Model: 4017999
Condition: NEW
MSD Relay & Wiring Kits protect your electrical system and provide reliable and consistent power for your high performance electric fan, electric water pump, or electric fuel pump. These kits include high quality heavy gauge wiring, 30…
Holly Sniper EFI HyperSpark Kit w/ 565-300, Chevy 565-300K
Model: 4953675
Condition: NEW
Our HyperSpark Master Kits were designed to make upgrading your ignition on a Sniper EFI-equipped engine simple. When installed concurrently with a new Sniper EFI system, the combination creates the easiest to install EFI conversion on the…
Holley EFI Lightweight Dominator ECU 554-114LW
Model: 4952978
Condition: NEW
PN 554-114LW is a Holley EFI Dominator ECU which utilizes a lighter potting material than the standard Dominator unit (reduces total weight by 1.8 lbs). This lightweight version is specifically intended for drag racing. It is not…
Holley EFI Dominator EFI Kit, LS2 Main Harness w/ Trans and DBW with EV1 Injector Harnesses 550-660
Model: 4952933
Condition: NEW
Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have…
Holley EFI Dominator EFI Kit, LS2 Main Harness w/ DBW with EV1 Injector Harnesses 550-659
Model: 4952932
Condition: NEW
Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have…
Holley EFI Dominator EFI Kit, LS2 Main Harness w/ Trans Control with EV1 Injector Harnesses 550-658
Model: 4952931
Condition: NEW
Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have…
Holley EFI Dominator EFI Kit, LS1 Main Harness w/ Trans and DBW with EV1 Injector Harnesses 550-657
Model: 4952930
Condition: NEW
Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have…
Holley EFI Dominator EFI Kit, LS1 Main Harness w/ Trans Control with EV1 Injector Harnesses 550-656
Model: 4952929
Condition: NEW
Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have…
Holley EFI Dominator EFI Kit, Ford, COP Main Harness, with Coil on Plug Main and Sub Harness with EV1 Injector Harness 550-655
Model: 4952928
Condition: NEW
Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have…
Holley EFI Dominator EFI Kit, Universal, COP Main Harness, with Coil on Plug Main and Sub Harness with EV1 Injector Harness 550-654
Model: 4952927
Condition: NEW
Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have…
Holley EFI Dominator EFI Kit, Ford Main Harness with EV1 Injector Harness 550-653
Model: 4952926
Condition: NEW
Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have…
Holley EFI Dominator EFI Kit, Universal Main Harness with EV1 Injector Harness 550-652
Model: 4952925
Condition: NEW
Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have…
Holley EFI Dominator EFI Kit, LS2 Main Harness with EV1 Injector Harness 550-651
Model: 4952924
Condition: NEW
Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have…
Holley EFI Dominator EFI Kit, LS1 Main Harness with EV1 Injector Harness 550-650
Model: 4952923
Condition: NEW
Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have…
MSD Electric Fan Harn./Relay Kit 195 Deg-30A 89616
Model: 4017997
Condition: NEW
MSD Relay & Wiring Kits protect your electrical system and provide reliable and consistent power for your high performance electric fan, electric water pump, or electric fuel pump. These kits include high quality heavy gauge wiring, 30…
Holley EFI Ford MPFI Coil on Plug Main Harness: 558-118
Model: 4007777
Condition: NEW
This harness provides a plug and play upgrade solution for those seeking to convert to Coil-On-Plug. Additionally we have pre-installed a Power Tap for easy access to 12v, 5v Reference, and Sensor Grounds. The Ford MPFI C-O-P Main Harness…
Holley EFI Dominator EFI ECU 554-114
Model: 4007695
Condition: NEW
Dominator® EFI Vehicle Management Systems are intended for non-emissions street and racing engine applications. In addition to the transmission control, drive by wire, and dual wideband oxygen sensor options, Dominator® systems have…
Holley EFI Terminator X Max, Universal MPFI Kit 550-959
Model: 4007605
Condition: NEW
Take control of your engine with Terminator X! Don't settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of…
Holley EFI Terminator X Max, Universal MPFI Kit 550-950
Model: 4007604
Condition: NEW
Take control of your engine with Terminator X! Don't settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of…
Holley EFI Terminator X Max, Ford MPFI Kit 550-945
Model: 4007603
Condition: NEW
Take control of your conventional Ford engine with Terminator X! Don't settle for a factory ECU with a cumbersome tuning interface or pre-programmed tuning chip when you can have complete control of your engine, self-learning fuel…
Holley EFI Terminator X Max, Ford MPFI Kit 550-944
Model: 4007602
Condition: NEW
Take control of your conventional Ford engine with Terminator X! Don't settle for a factory ECU with a cumbersome tuning interface or pre-programmed tuning chip when you can have complete control of your engine, self-learning fuel…
Holley EFI Terminator X Max, Ford MPFI Kit 550-943
Model: 4007600
Condition: NEW
Take control of your conventional Ford engine with Terminator X! Don't settle for a factory ECU with a cumbersome tuning interface or pre-programmed tuning chip when you can have complete control of your engine, self-learning fuel…
Holley EFI Terminator X Max, Universal MPFI Kit 550-942
Model: 4007599
Condition: NEW
Take control of your engine with Terminator X! Don't settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of…
Holley EFI Terminator X, Ford MPFI Kit 550-937
Model: 4007597
Condition: NEW
Take control of your conventional Ford engine with Terminator X! Don't settle for a factory ECU with a cumbersome tuning interface or pre-programmed tuning chip when you can have complete control of your engine, self-learning fuel…
Holley EFI Terminator X Universal MPFI Kit 550-936
Model: 4007596
Condition: NEW
Take control of your engine with Terminator X! Don't settle for a factory ECU with a cumbersome tuning interface when you can have complete control of your engine, self-learning fuel strategies and the proven, race-winning technology of…
Holley EFI Terminator X Max, Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3 550-935T
Model: 4007595
Condition: NEW
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 engine, self-learning fuel strategies and the proven, race-winning…
Holley EFI Terminator X Max, Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3 550-935
Model: 4007594
Condition: NEW
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 engine, self-learning fuel strategies and the proven, race-winning…
Holley EFI Terminator X Max, LS1/LS6 550-934T
Model: 4007593
Condition: NEW
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 engine, self-learning fuel strategies and the proven, race-winning…
Holley EFI Terminator X Max, LS1/LS6 550-934
Model: 4007592
Condition: NEW
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 engine, self-learning fuel strategies and the proven, race-winning…
Holley EFI Terminator X Max, Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3 550-933T
Model: 4007591
Condition: NEW
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 engine, self-learning fuel strategies and the proven, race-winning…
Holley EFI Terminator X Max, Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3 550-933
Model: 4007590
Condition: NEW
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 engine, self-learning fuel strategies and the proven, race-winning…
Holley EFI Terminator X Max, LS1/LS6 550-932T
Model: 4007589
Condition: NEW
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 engine, self-learning fuel strategies and the proven, race-winning…
Holley EFI Terminator X Max, LS1/LS6 550-932
Model: 4007588
Condition: NEW
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 engine, self-learning fuel strategies and the proven, race-winning…
Holley EFI Terminator X Max, Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3 550-931T
Model: 4007587
Condition: NEW
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 engine, self-learning fuel strategies and the proven, race-winning…
Holley EFI Terminator X Max, Gen IV 4.8/5.3/6.0 GM Truck Engines and LS2/LS3 550-931
Model: 4007586
Condition: NEW
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 engine, self-learning fuel strategies and the proven, race-winning…
Holley EFI Terminator X Max, Gen III 4.8/5.3/6.0 GM Truck Engines 550-930T
Model: 4007585
Condition: NEW
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 engine, self-learning fuel strategies and the proven, race-winning…