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more_vert558-322 | COIL HARNESS, FORD COYOTE (2015.5+)
558-322 | COIL HARNESS, FORD COYOTE (2015.5+)
$223.00$199.95
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Introducing Coyote Twin Independent Variable Cam Timing Control from Holley EFI! Do you have a coyote crate engine going in your dream car? Is your weekend road race warrior powered by a coyote junkyard engine with locked cams? Unlock the full potential of your high revving power plant with the Holley EFI Plug and Play Coyote Ti-VCT Control Module. BrandHolley EFIEmission Code4Harness Application..

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more_vert558-400 | J1 A/B I/O CONNECTOR HP & DOM
558-400 | J1 A/B I/O CONNECTOR HP & DOM
$107.00$95.95
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BrandHolley EFIEmission Code3Harness TypeAuxiliaryProduct TypeJ1 Auxillary Input/ Output Harness - ConnectorPart Number558-400..

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more_vert558-401 | J2A CONNECTOR & HARNESS
558-401 | J2A CONNECTOR & HARNESS
$223.00$199.95
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Used when adding a second wide band oxygen sensor to a Dominator EFI installation. Features:J2A Connector#2 Wide band oxygen sensor harness (Fully Terminated)23 user programmable input wires with pre-crimped ECU pinsBrandHolley EFIEmission Code3Harness TypeAuxiliaryProduct TypeJ2 Auxiliary Input/ Output Harness - ConnectorPart Number558-401..

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more_vert558-402 | J2B CONNECTOR & HARNESS
558-402 | J2B CONNECTOR & HARNESS
$156.00$139.95
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BrandHolley EFIEmission Code3Harness TypeAuxiliaryProduct TypeJ2 Auxiliary Input/ Output Harness - ConnectorPart Number558-402..

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more_vert558-403 | J3 CONNECTOR & HARNESS
558-403 | J3 CONNECTOR & HARNESS
$156.00$139.95
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BrandHolley EFIEmission Code3Harness TypeAuxiliaryProduct TypeJ3 Auxiliary Input/ Output Harness - ConnectorPart Number558-403..

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more_vert558-404 | J4 CONNECTOR & HARNESS
558-404 | J4 CONNECTOR & HARNESS
$189.00$169.95
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BrandHolley EFIEmission Code3Harness TypeAuxiliaryProduct TypeJ4 Auxiliary Input/ Output Harness - ConnectorPart Number558-4043This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:1965 and older U.S. manufactured California Certified vehicles1967 an..

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more_vert558-407 | MULTIMAP SELECTOR
558-407 | MULTIMAP SELECTOR
$145.00$129.95
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Dominator EFI Multi Map SelectorBrandHolley EFIEmission Code5Harness TypeAuxiliaryProduct TypeMulti Map SelectorPart Number558-407..

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more_vert558-408 | LOOSE J2-J4 CONNECTOR PIN
558-408 | LOOSE J2-J4 CONNECTOR PIN
$195.00$174.95
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j2A, j2B, j3, j4 Connector & Pin Kit - Contains connectors & pins, but no wiring. for Dominator EFIBrandHolley EFIEmission Code5Harness TypeAuxiliaryProduct TypeEFI Connector KitPart Number558-408..

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more_vert558-409 | SEALED USB CABLE
558-409 | SEALED USB CABLE
$77.72$69.95
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7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU.BrandHolley EFIEmission Code5Harness TypeAuxiliaryLength7'Product TypeUSB Data - Communication CablePart Number558-409..

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more_vert558-410 | CRANK/CAM HARNESS
558-410 | CRANK/CAM HARNESS
$95.50$85.95
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Crank/Cam Ign. Harness. Fully terminated harness. Connects to Holley 60-2 crank sensor and GM Cam-Sync Distributor AC Delco PN213-350 or eficonnection.com sync pulse distributorBrandHolley EFIEmission Code3Harness ApplicationUniversalHarness TypeIgnitionProduct TypeCrank - Cam HarnessPart Number558-410..

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more_vert558-414 | HARNESS, TERMINATOR MAIN
558-414 | HARNESS, TERMINATOR MAIN
$423.00$379.95
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Replacement main wiring harness for Terminator EFI kits 550-405 and 550-406.BrandHolley EFIEmission Code3Product TypeTerminator TBI Main Engine HarnessPart Number558-414..

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more_vert558-415 | SUB-HARNESS, TERMINATOR
558-415 | SUB-HARNESS, TERMINATOR
$223.00$199.95
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Replacement throttle body wiring harness for Terminator EFI kits 550-405 and 550-406.BrandHolley EFIEmission Code3Product TypeTerminator Throttle Body HarnessPart Number558-415..

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more_vert558-420 | TERMINATOR EFI I/O KIT
558-420 | TERMINATOR EFI I/O KIT
$44.39$39.95
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PN 558-420 contains 5 extra input/output wires that the base Terminator EFI harness does not contain. It contains Input wires for Inputs 1-4. It contains one wire for Output 2. These inputs and outputs can perform features and functions that must be programmed via Holley EFI laptop software. The software also contains instructions on how to program these.BrandHolley EFIEmission Code5Harness TypeAu..

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more_vert558-422 | DBW HARNESS, FORD COYOTE
558-422 | DBW HARNESS, FORD COYOTE
$245.00$219.95
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Drive-By-Wire harness for 2011-2017 Ford Coyote (5.0L) enginesFeatures:Designed to be used with Ford Throttle Body P/N's - BR3Z-9E926-C, BR3E-9F991-AB, and FR3E-9F991-AADesigned to be used with Ford Throttle Pedal P/N - BR3Z-9F836-D and BR3Z-9F836-C BrandHolley EFIEmission Code4Harness ApplicationFordHarness TypeDrive-By-WireProduct TypeDrive By Wire HarnessPart Number558-422..

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more_vert558-424 | CAN EXTENSION HARNESS, 4FT
558-424 | CAN EXTENSION HARNESS, 4FT
$49.94$44.95
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Can Extension Harness (for Racepak and other external CAN drives)BrandHolley EFIEmission Code5Product TypeCAN Extension HarnessPart Number558-424..

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more_vert558-425 | CAN EXTENSION HARNESS, 8FT
558-425 | CAN EXTENSION HARNESS, 8FT
$55.50$49.95
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Can Extension Harness (for Racepak and other external CAN drives)BrandHolley EFIEmission Code5Product TypeCAN Extension HarnessPart Number558-425..

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more_vert558-426 | CAN EXTENSION HARNESS, 12FT
558-426 | CAN EXTENSION HARNESS, 12FT
$66.61$59.95
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CAN Extension Harness (for Racepak and other external CAN drives)BrandHolley EFIEmission Code5Product TypeCAN Extension HarnessPart Number558-426..

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more_vert558-428 | CAN EXTENSION HARNESS, 9IN
558-428 | CAN EXTENSION HARNESS, 9IN
$44.39$39.95
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Can Extension Harness (for Racepak and other external CAN drives)BrandHolley EFIEmission Code5Product TypeCAN Extension HarnessPart Number558-428..

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more_vert558-430 | CAN ADAPTER - NEW DEVICE TO TWO PIN MALE
558-430 | CAN ADAPTER - NEW DEVICE TO TWO PIN MALE
$35.37$31.83
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The Holley EFI Can Adapter/Power Harness adapts two pin Holley main harness CAN connectors to new style 4 pin CAN devices.BrandHolley EFIEmission Code5Product TypeCAN Extension HarnessPart Number558-430..

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more_vert558-432 | I/O ADAPTER, DIGITAL DASH
558-432 | I/O ADAPTER, DIGITAL DASH
$134.00$119.95
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Replacement I/O Adapter for Digital Dash BrandHolley EFIEmission Code5Product TypeDigital Dash Harness / Adapter / ModulePart Number558-432..