Holley EFI

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Injector Harness, MPFI Unterminated 16 injectors

Unterminated 16 injectors MPFI harness Terminated at injector connectors (Bosch style). Harness must..

$314.95 $279.95

Injector Harness, V8 Over-Manifold, Bosch Style

V8 over Manifold, Bosch Style Connector Harness for Avenger EFI, HP EFI & Dominator EFI..

$202.95 $179.95

J2A, J2B, J3, J4 Connector & Pin Kit

j2A, j2B, j3, j4 Connector & Pin Kit - Contains connectors & pins, but no wiring. Works with the Dom..

$227.95 $201.95

LS Coil Sub-Harnesses (Pair)

Need to replace the coil harnesses on your GM LS engine?  Or maybe you've secured a set of LS c..

$202.95 $179.95

Main Harness Input/Output Upgrade, Terminator

PN 558-420 contains 5 extra input/output wires that the base Terminator EFI harness does not contain..

$54.36 $48.32

Main Harness, 99-04 Ford Godzilla 7.3L

EFI Main harness for the Ford Godzilla 7.3L Engines. Note that two different ignition connector styl..

$520.95 $462.95

Main Harness, 99-04 Ford Modular

Main harness for 99-04 2 & 4 Valve Ford Modular (4.6 & 5.4L) Engines. Note that two differen..

$844.95 $750.95

Main Harness, Gen III Hemi w/Early Crank/Cam Sensors

Check the alternate image above to see the difference between the early and late cam and crank senso..

$871.95 $774.95

Main Harness, Gen III Hemi w/Late Crank/Cam Sensors

Check the alternate image above to see the difference between the early and late cam and crank senso..

$826.95 $734.95

Main Harness, LS1 / LS6

This harness is designed for Chevy LS and late-model truck engines that have a 24-tooth crank sensor..

$653.95 $580.95

Main Harness, LS2 / LS3 / LS7

This harness is designed for Chevy LS and late-model truck engines that have a 58-tooth crank sensor..

$653.95 $580.95

Main Harness, Multi-point / Stealth Ram

If you need to replace one of the Holley Stealth Ram system harnesses, or if you are building a stea..

$653.95 $580.95

Main Harness, Terminator

Replacement main wiring harness for Terminator EFI kits 550-405 and 550-406...

$518.95 $460.95

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