Ignition Harness

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Holley EFI

For Pro-Billet Distributor or Magnetic Crank Trigger to Sniper 2

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$45.25 $39.24

Provide RPM signal to the ECU for your Sniper 2 while not using timing control. With two wires, it's quick and easy to install...

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Holley EFI

HyperSpark Ignition Adapter

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$53.15 $46.09

Designed to plug and play with HyperSpark distributors and Holley EFI main harnesses with ignition connector.

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Holley EFI

Gen III HEMI Coil Harness, Late Coils, for HP EFI & Dominator EFI

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$224.95 $199.95

Chrysler has used two different coils on the HEMI engine series with 2006 being the year that the change was phased throughout the truck...

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Holley EFI

For use with Holley® HP and Dominator ECUs and other EFI systems

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$322.95 $279.95

HP Smart Coil ignition sub-harness. Includes a pair of coil harnesses for an 8 cylinder engine. These harnesses are similar in design to factory...

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Holley EFI

“Big Wire” C-N-P Ignition Sub Harness

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$330.95 $286.95

"Big Wire" Sub Harness- pre wired with 12ga power and grounds, for optimal performance!

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Holley EFI

Hemi DBW Harness 2013+ Applications (Dominator EFI Only)

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$134.95 $117.95

The Holley Dominator ECU has built in capability to control the Drive-By-Wire throttle pedals and throttle bodies used on most Chrysler HEMI applications.

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Holley EFI

99-04 4 Valve Ford Modular Coil Harness, For HP EFI and Dominator EFI

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$238.95 $206.95

99-04 4 Valve Ford Modular Coil Harness, For HP EFI and Dominator EFI

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Holley EFI

2011 to 2015 Ford Coyote Coil Harness, For HP EFI & Dominator EFI

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$253.95 $219.95

2011 to 2015 Ford Coyote Coil Harness, For HP EFI & Dominator EFI

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Holley EFI

Ford TFI Ignition Harness for Avenger EFI, HP EFI & Dominator EFI

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$145.95 $125.95

Ford TFI Ignition Harness for Avenger EFI, HP EFI & Dominator EFI

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Holley EFI

Universal Unterminated Ignition Harness for HP EFI & Dominator EFI

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$211.95 $187.95

Universal Unterminated Ignition Harness for HP EFI & Dominator EFI

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Holley EFI

For use with Holley® HP and Dominator ECUs and other EFI systems

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$215.95 $187.95

Universal Coil On/Near Plug Harness – Use to connect Holley PN 558-312 or factory GM LSx coil harnesses to Holley HP or Dominator ECU's

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Holley EFI

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

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$120.95 $104.95

This Harness is required with HP or Dominator ECUs. Includes, 13' long, 10 AWG main power harness, Qty. (2) 3/8" ring terminals and shrink...

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Holley EFI

Gen III HEMI Coil Harness, Early Coils, for HP EFI & Dominator EFI

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$215.95 $187.95

Chrysler has used two different coils on the HEMI engine series with 2006 being the year that the change was phased throughout the truck...

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Holley EFI

Dominator EFI Connector J4 Auxiliary Harness

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$258.95 $224.95

Dominator EFI Connector J4 Auxiliary Harness

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Holley EFI

Ford Modular 2V and 4V Main Harness for use with Holley Smart Coils

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$1,037.95 $899.95

Main Harness for 1999-2004 2 & 4 Valve Ford Modular (4.6 & 5.4L) Engines for use with Holley Smart Coils

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Holley EFI

Universal MPFI Coil On Plug Main Harness

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$674.95 $599.95

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...

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Holley EFI

Ford MPFI Coil On Plug Main Harness

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$731.95 $649.95

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...

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Holley EFI

HEI Ignition Harness for Avenger EFI, HP EFI & Dominator EFI

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$68.95 $59.25

HEI Ignition Harness for Avenger EFI, HP EFI & Dominator EFI

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Holley EFI

Crank/Cam Ign. Harness. Fully terminated harness.

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$112.95 $99.95

Crank/Cam Ign. Harness for Ferrous Crank/Magnetic Cam Hall Effect Sensors. Fully terminated harness.

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Holley Sniper EFI

HyperSpark Plug and Play Main Harness

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$368.95 $320.95

With our HyperSpark plug and play main harness, you replace the Sniper 1 main harness and use the new harness to connect your HyperSpark...

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Holley Sniper EFI

Replacement harness for HyperSpark and HyperSpark 2 Ignition Boxes

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$38.78 $34.47

This harness includes switched 12V, battery+, battery-, ignition coil wire, and output wires for points or electronic ignition amplifier. Harness is wrapped in protective...