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Showing 25 to 36 of 55 items
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Brand: Holley EFI

Gen III HEMI Main Harness Late w/ TPS and Idle Air Control Connections

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$799.95

$899.95

Gen III HEMI Harness with TPS and Idle Air Control Connections. This wiring harness interfaces...

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Brand: Holley EFI

Holley EFI Transmission Control Harness - GM 4L60 (Pre-2009) and 4L80

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$299.95

$337.95

Expanding our transmission control options for our EFI systems, this harness provides plug and play...

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Brand: Holley EFI

Holley EFI GM Drive-By-Wire Harness - Early Truck

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$269.95

$303.95

Terminator X Max and Dominator EFI GM DBW Harness-Early Truck. Compatible with GM part number...

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Brand: Holley EFI

Gen III Hemi Main Harness Early w/ TPS and Idle Air Control Connections

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$849.95

$956.95

This wiring harness interfaces a Holley EFI ECU to a Gen III HEMI engine with...

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Brand: Holley EFI

LSx Injector Harness for HP EFI, Dominator EFI and Terminator X.

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$178.95

$201.95

LSx Injector Harness for HP EFI, Dominator EFI and Terminator X.

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Brand: Holley EFI

Universal 6 Cylinder Injector Harness for HP EFI & Dominator EFI

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$212.95

$239.95

Universal 6 Cylinder Injector Harness for HP EFI & Dominator EFI

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Brand: Holley EFI

Universal Unterminated Injector Harness

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$226.15

$254.95

Universal Unterminated Injector Harness for HP EFI & Dominator EFI(Bosch EV1 style).

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Brand: Holley EFI

2011-2017 Ford Coyote Drive-By-Wire Harness

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$275.95

$310.95

Drive-By-Wire harness for 2011-2017 Ford Coyote (5.0L) engines

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Brand: Holley EFI

Ford V8 Injector Harness for HP EFI & Dominator EFI

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$249.95

$281.95

Ford V8 Injector Harness for HP EFI & Dominator EFI

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Brand: Holley EFI

Gen III HEMI V8 Injector Harness - Stock/USCAR style injectors

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$199.95

$224.95

An Injector Harness is required and Holley offers two. The harness with USCAR/Stock injector connectors...

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Brand: Holley EFI

Gen III HEMI V8 Injector Harness - Bosch/Jetronic and Holley injectors

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$187.95

$211.95

An Injector Harness is required and Holley offers two. The harness with USCAR/Stock injector connectors...

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Brand: Holley EFI

LS1/6 Main Harness for HP EFI & Dominator EFI

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$632.95

$712.95

This harness is designed for LS1/6 Engines, from 1997-2004. This harness interfaces with 24x Crank...