HOLLEY 558-426 Can Extension Harness 12ft
$128.02
HLY558-426
All Products
Engine Wiring Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
CAN Wiring Harness - Extension Harness - 12 ft Long - Black Rubber Coated - Each
HOLLEY 558-406 Drive By Wire Harness GM
$374.25
HLY558-406
All Products
Engine Wiring Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - Drive by Wire - Holley Dominator EFI - GM - Each
HOLLEY 558-463 Adapter Harness Wideband Terminator-X
$101.37
HLY558-463
All Products
Engine Wiring Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
Wiring Harness Adapter - Terminator X - Wideband - Each
HOLLEY 558-420 Wire Harness Kit - EFI Terminator I/O
$82.86
HLY558-420
All Products
Fuel Injector Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - Input / Output - Holley Terminator EFI - Each
HOLLEY 558-416 Map Sensor Adapter LS1 & LS2 to LS3
$64.79
HLY558-416
All Products
Engine Wiring Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
Wiring Harness Adapter - LS Main Harness to LS3 Map Sensor - Each
HOLLEY 558-428 CAN Extension Harness 9in Length
$85.02
HLY558-428
All Products
Engine Wiring Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
CAN Wiring Harness - Extension Harness - 9 in Long - Black Rubber Coated - Each
HOLLEY 558-443 Sniper EFI CAN to USB Dongle-Com. Cable
$123.98
HLY558-443
All Products
Computers, Chips, Modules and Programmers
Data Cables
HOLLEY
Ignitions and Electrical
Data Transfer Cable - USB to CAN - 8 ft - Black - Sniper / Terminator X EFI - Each
HOLLEY 558-429 Dominator EFI DBW Harness - Early Truck
$423.10
HLY558-429
All Products
Engine Wiring Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - Drive by Wire - Holley Dominator EFI - GM - Each
HOLLEY 558-400 J1A/B Input/Output Connector
$206.51
HLY558-400
All Products
Engine Wiring Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - J1A/B - Holley Dominator EFI - Each
HOLLEY 558-408 Connector & Pin Kit J2A/J2B/J3/J4
$353.88
HLY558-408
All Products
HOLLEY
Ignitions and Electrical
Wiring Components
Wiring Connectors and Terminals
Connector and Pin Kit - J2A / J2B / J3 / J4 Plugs - Holley Dominator EFI - Kit
HOLLEY 558-430 Can Adapter- New Device to 2-Pin Main Harness
$65.42
HLY558-430
All Products
Engine Wiring Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
Data Transfer Cable Adapter - 2 Pin Harness to CAN - Each
HOLLEY 558-425 CAN Extension Harness 8ft Length
$106.55
HLY558-425
All Products
Engine Wiring Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
CAN Wiring Harness - Extension Harness - 8 ft Long - Black Rubber Coated - Each
HOLLEY 558-405 Trans Wire Harness GM 4L60 Pre 2009 - 4L80
$482.46
HLY558-405
All Products
Engine Wiring Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - Transmission - Holley Dominator EFI - GM 4L60E / 4L80E - Each
HOLLEY 558-431 Crank/Cam Ignition Harness
$153.23
HLY558-431
All Products
Engine Wiring Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - Camshaft Ignition Harness - Holley HP / Dominator EFI - Universal - Kit
HOLLEY 558-326 LS Coil Ext. Harness 36in 2pk
$200.23
HLY558-326
All Products
HOLLEY
Ignition Wiring Harnesses
Ignitions and Electrical
Wiring Harnesses
Ignition Wiring Harness - Coil Extension Harness - GM LS-Series - Pair
HOLLEY 558-409 Sealed USB Cable
$151.81
HLY558-409
All Products
Computers, Chips, Modules and Programmers
Data Cables
HOLLEY
Ignitions and Electrical
Data Transfer Cable - USB to Mini USB - Sealed - 7 ft Length - Holley EFI Kits - Each
HOLLEY 558-329 CD Box to Sniper 2
$41.94
HLY558-329
All Products
HOLLEY
Ignitions and Electrical
Wiring Components
Wiring Pigtails
Wiring Terminal - Sniper 2 EFI - Tach Input Ignition Adapter - Pigtail Included - CD Box to Sniper 2 EFI - Each
HOLLEY 558-404 J4 Connector & Harness
$361.43
HLY558-404
All Products
Fuel Injector Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - J4 Auxiliary Harness - Holley Dominator EFI - Each
HOLLEY 558-402 J2B Auxiliary Harness Kit
$277.67
HLY558-402
All Products
Engine Wiring Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - J2B Auxiliary Connector Harness - Holley Dominator EFI - Universal - Kit
HOLLEY 558-311 Hemi Coil Harness Late TYCO
$294.73
HLY558-311
All Products
HOLLEY
Ignition Wiring Harnesses
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - Ignition Coil Wiring - Holley HP / Dominator EFI - Mopar Gen III Hemi - Each
HOLLEY 558-401 Auxiliary Harness J2A Connector
$359.65
HLY558-401
All Products
Engine Wiring Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - J2A Auxiliary Connector Harness - Holley Dominator EFI - Universal - Kit
HOLLEY 558-407 Multi Map Selector
$265.99
HLY558-407
All Products
Electrical Switches and Components
HOLLEY
Ignitions and Electrical
Wiring Components
ECM Calibration Select Switch - Key Selector - 4 Separate Maps - Holley Dominator EFI - Kit
HOLLEY 558-403 J3 Connector & Harness
$277.67
HLY558-403
All Products
Fuel Injector Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
Wiring Harness - J3 Auxiliary Input / Output Connector - Dominator EFI - Each
HOLLEY 558-330 Pro Billet/Crank Trigger to Sniper 2
$41.62
HLY558-330
All Products
HOLLEY
Ignitions and Electrical
Wiring Components
Wiring Pigtails
Wiring Terminal - Sniper 2 EFI - Tach Input Ignition Adapter - Crank Trigger Magnetic Input to Sniper 2 EFI - Each
HOLLEY 558-325 EFI Pro-Billet Ignition Adapter
$63.61
HLY558-325
All Products
HOLLEY
Ignition Wiring Harnesses
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - Ignition Adapter Harness - MSD Distributors to Holley EFI - Each
HOLLEY 558-321 GM LS Coil Sub Harnesses
$308.49
HLY558-321
All Products
HOLLEY
Ignition Wiring Harnesses
Ignitions and Electrical
Wiring Harnesses
Ignition Wiring Harness - Factory Replacement - Injector Sub Harness - GM LS-Series - Pair
HOLLEY 558-305 Ford TFI Ignition Harness
$203.45
HLY558-305
All Products
HOLLEY
Ignition Wiring Harnesses
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - Ignition Adapter Harness - Ford TFI Distributor to Holley Avenger / HP / Dominator EFI - Each
HOLLEY 558-308 EFI Main Power Harness
$168.52
HLY558-308
All Products
Engine Wiring Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - Main Power - Holley Dominator EFI - Each
HOLLEY 558-219 Harness Injector Driver Module
$517.16
HLY558-219
All Products
Fuel Injector Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - J2B Plug to Dominator ECU Module - Universal - Each
HOLLEY 558-201 Injector Wiring Harness V8 EV6 Style Injectors
$288.52
HLY558-201
All Products
Fuel Injector Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - EV6 Style Injectors - Holley Dominator EFI - Each
HOLLEY 558-304 HEI Ignition Harness
$95.99
HLY558-304
All Products
HOLLEY
Ignition Wiring Harnesses
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - Ignition Adapter Harness - GM Small Cap HEI Distributor to Holley Avenger / HP / Dominator EFI - Each
HOLLEY 558-323 Wiring Harness Adapter Hyperspark Ignition
$71.40
HLY558-323
All Products
HOLLEY
Ignition Wiring Harnesses
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - Ignition Adapter Harness - HyperSpark Distributors to Holley EFI - Each
HOLLEY 558-307 LS Coil On Plug Harness Universal
$303.71
HLY558-307
All Products
HOLLEY
Ignition Wiring Harnesses
Ignitions and Electrical
Wiring Harnesses
Ignition Wiring Harness - Coil-On-Plug to Sub Harness - Holley HP / Dominator EFI - Each
HOLLEY 558-312 HP EFI Sub-Harnesses - Smart Coil
$418.73
HLY558-312
All Products
HOLLEY
Ignition Wiring Harnesses
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - Smart Coil - Ignition Coil Wiring - Holley HP / Dominator EFI - Universal - Each
HOLLEY 558-318 Coil-Near-Plug Sub Harness - Big Wire
$427.31
HLY558-318
All Products
HOLLEY
Ignition Wiring Harnesses
Ignitions and Electrical
Wiring Harnesses
Ignition Wiring Harness - Big Wire C-N-P Sub Harness - V8 - Each
HOLLEY 558-213 Injector Harness Ford w/ Jetronic Injectors
$331.77
HLY558-213
All Products
Fuel Injector Harnesses
HOLLEY
Ignitions and Electrical
Wiring Harnesses
EFI Wiring Harness - EV1 Style Injectors - Ford V8 - Each