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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…
Holley EFI Water Injection Filter 557-107
Model: 4007761
Condition: NEW
Take your forced induction ride to the next level with a Holley water/meth injection system! Integrated into the Holley HP and Dominator EFI Systems is the capability to control water/methanol injection, allowing you to safely run on…
Holley EFI Solenoid/Nozzle 1000cc/Min (800HP) 557-106
Model: 4007760
Condition: NEW
Take your forced induction ride to the next level with a Holley water/meth injection system! Integrated into the Holley HP and Dominator EFI Systems is the capability to control water/methanol injection, allowing you to safely run on lower…
Holley EFI Water Methanol Installation Kit 557-101
Model: 4007759
Condition: NEW
Take your forced induction ride to the next level with a Holley water/meth injection system! Integrated into the Holley HP and Dominator EFI Systems is the capability to control water/methanol injection, allowing you to safely run on lower…
Holley EFI Water Methanol Pump 557-100
Model: 4007758
Condition: NEW
Take your forced induction ride to the next level with a Holley water/meth injection system! Integrated into the Holley HP and Dominator EFI Systems is the capability to control water/methanol injection, allowing you to safely run on lower…
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 HP EFI ECU 554-113
Model: 4007694
Condition: NEW
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 kits are designed to be used with popular…
Holley EFI HP EFI ECU & Harness Kits 550-606N
Model: 4007515
Condition: NEW
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 designed to be used with popular factory…
Holley EFI HP EFI ECU & Harness Kits 550-606
Model: 4007514
Condition: NEW
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 designed to be used with popular factory…
Holley EFI HP EFI ECU & Harness Kits 550-605N
Model: 4007513
Condition: NEW
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 designed to be used with popular factory…
Holley EFI HP EFI ECU & Harness Kits 550-605
Model: 4007512
Condition: NEW
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 kits are designed to be used with popular…
Holley EFI HP EFI ECU & Harness Kits 550-604N
Model: 4007511
Condition: NEW
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 kits are designed to be used with popular…
Holley EFI HP EFI ECU & Harness Kits 550-604
Model: 4007510
Condition: NEW
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 kits are designed to be used with popular…
Holley EFI HP EFI ECU & Harness Kits 550-601N
Model: 4007505
Condition: NEW
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 kits are designed to be used with popular…
Holley EFI HP EFI ECU & Harness Kits 550-601
Model: 4007504
Condition: NEW
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 kits are designed to be used with popular…
Holley EFI HP EFI Universal MPI Retrofit Kits 550-501
Model: 4007503
Condition: NEW
Do you have a Mopar, Ford or other type engine you want to install multi-port fuel injection on? No, problem, the Holley HP universal MPI retrofit EFI kits are designed to be used with any V-8 intake manifold. The kit comes with injector…
Holley EFI HP EFI Universal MPI Retrofit Kits 550-500
Model: 4007502
Condition: NEW
Do you have a Mopar, Ford or other type engine you want to install multi-port fuel injection on? No, problem, the Holley HP universal retrofit EFI kits are designed to be used with any V-8 intake manifold. The kit comes with injector bungs…
Holley Installation Kit for GM Gen v LT Accessory Drive 21-5
Model: 3992156
Condition: NEW
GM has updated its V8 performance engines and launched the new Gen V LT1 direct injected engine as a replacement for the very popular LS series of engines. This new accessory drive bracket installation kit allows the use of our popular &…
Holley Complete GM Gen v LT, L83, L84, L86, and L87 Accessory Drive System w/ Alt, P/S, A/C, Water Pump, Belts, and Spacers 20-170
Model: 3992008
Condition: NEW
GM has updated its V8 performance engines and launched the new Gen V LT1 direct injected engine as a replacement for the very popular LS series of engines. This new accessory drive bracket installation kit allows the use of our popular &…