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Holley Harnesses

Holley Harnesses

Holley Harnesses

GM 3 Bar Map Sensor 1 Foot Extension Harness MSD DFI 12"

$9.99
Holley HP Self Tuning EFI ECU and Harness Kit LS1 LS6 550-602

$1,819.95

Out of stock
HOT

Holley LS1 Main Harness for HP & Dominator EFI

$402.95
HOT

Holley EFI High Current Nitrous Solenoid Driver for Progressive Control

$87.61

Out of stock
HOT

Holley EFI Tach Input Ignition Adapter Harness for MSD and others CD Boxes

$13.34
HOT

Holley 550-406 Terminator EFI 4bbl Throttle Body Fuel Injection System 4150 Flange

$2,165.95

Out of stock
Holley EFI FORD COYOTE HP KIT, BOSCH O2, USCAR INJ

$1,953.95
Holley EFI FORD COYOTE HP KIT, NTK O2, USCAR INJ

$2,107.95
Holley EFI MAIN HARNESS, FORD COYOTE NON-VVT

$506.95
Holley Ford Coyote Main Harness w/ Smart Coils For HP & Dominator EFI

$524.95
Holley EFI SBF Ford MPFI W/ COP Main Harness Small Block

$359.95
Holley EFI COIL HARNESS, FORD COYOTE

$126.95

Out of stock
Holley EFI DBW HARNESS, FORD COYOTE

$158.95

Out of stock
Holley Ford Coyote EFI Main Harness Kit 5.0L Mustang Swap Non-VVT

$898.95
HOT

Holley LS2 Main Harness for HP & Dominator EFI

$402.95

Out of stock
HOT

EV1 Fuel Injector Connector Pigtail Ford Buick LS1 LS6

$4.25
GM 3 Bar Map Sensor Pigtail MOTEC MSD DFI HALTECH Accel

$7.98
GM 3 Bar Map Sensor 3 Foot Extension Harness HALTECH 36"

$11.99
HOT

LT1 LS1 LS6 Camaro Firebird Corvette 15" Oxygen Sensor Extension Harness

$9.49
HOT

Main Power Harness for Holley Avenger EFI, HP EFI, & Dominator EFI

$61.62

Out of stock
HOT

Holley EFI Universal Coil On / Near Plug Harness

$102.95
HOT

Holley EFI LSx Injector Harness For EV6 Style Injectors

$102.95

Out of stock
HOT

Holley Dominator EFI GM 4L60 4L80E Transmission Harness

$176.95

Out of stock
HOT

Holley EFI Universal Unterminated Injector Harness

$127.95
HOT

Holley 554-114 Dominator EFI Self Tuning ECU Stand Alone

$1,990.95

Out of stock
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Holley Unterminated Universal Main Harness for HP EFI & Dominator EFI

$335.95
HOT

Holley EFI HP Smart Coil Ignition Harness

$120.95

Out of stock
HOT

Holley Performance EFI 5.7" LCD Touch Screen for HP Dominator 553-103

$663.55

Out of stock
HOT

Holley Dominator EFI Connector J2A Auxiliary Harness

$145.95

Out of stock
HOT

Holley Dominator EFI DIY Kit - Bundle your own kit.

As low as: $13.34

Feel free to contact our tech team if you have any questions.

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