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HLY-558-420 #1

Wire Harness Kit - Efi Terminator I/O

Efi Wiring Harness - Input / Output - Holley Terminator Efi - Each
HOLLEY  |  Part# HLY-558-420   More Details...

$40.95


HLY-558-416 #1

Map Sensor Adapter Ls1 & Ls2 to Ls3

Wiring Harness Adapter - LS Main Harness To Ls3 Map Sensor - Each
HOLLEY  |  Part# HLY-558-416   More Details...

$35.82


HLY-558-409 #1

Sealed Usb Cable

Data Transfer Cable - Usb To Mini Usb - Sealed - 7 FT Length - Holley Efi Kits - Each
HOLLEY  |  Part# HLY-558-409   More Details...

$71.70


HLY-558-408 #1

Connector & Pin Kit J2A/J2B/J3/J4

Connector And Pin Kit - J2a / J2b / J3 / J4 Plugs - Holley Dominator Efi - Kit
HOLLEY  |  Part# HLY-558-408   More Details...

$179.95


HLY-558-323 #1

Wiring Harness Adapter Hyperspark Igniti

Efi Wiring Harness - Ignition Adapter Harness - Hyperspark Distributors To Holley Efi - Each
HOLLEY  |  Part# HLY-558-323   More Details...

$35.82


HLY-558-400 #1

J1A/B INPUT/OUTPUT Connector

Efi Wiring Harness - J1A/B - Holley Dominator Efi - Each
HOLLEY  |  Part# HLY-558-400   More Details...

$98.35


HLY-558-325 #1

Efi PRO-BILLET Ignition Adapter

Efi Wiring Harness - Ignition Adapter Harness - MSD Distributors To Holley Efi - Each
HOLLEY  |  Part# HLY-558-325   More Details...

$30.70


HLY-558-401 #1

Auxiliary Harness J2a Connector

Efi Wiring Harness - J2a Auxiliary Connector Harness - Holley Dominator Efi - Universal - Kit
HOLLEY  |  Part# HLY-558-401   More Details...

$204.95


HLY-558-321 #1

GM LS Coil Sub Harnesses

Ignition Wiring Harness - Factory Replacement - Injector Sub Harness - GM LS-SERIES - Pair
HOLLEY  |  Part# HLY-558-321   More Details...

$174.95


HLY-558-318 #1

COIL-NEAR-PLUG Sub Harness - Big Wire

Ignition Wiring Harness - Big Wire C-N-P Sub Harness - V8 - Each
HOLLEY  |  Part# HLY-558-318   More Details...

$220.95