Holley EFI Igntion Coil Remote Relocation Bracket, Black Finish, Pair 561-130

$194.95 $169.15
GVMR_561-130
.IgnitionCoils All Brackets, Flanges and Hangers Holley EFI Ignition Ignition Coil Brackets Ignition Coil Mounting Bracket Ignition Components Ignitions and Electrical In Stock Sale
Holley is pleased to announce the arrival of our remote coil relocation brackets for all existing LS coil models, as well as for Holley...

Holley EFI Igntion Coil Remote Relocation Bracket, Black Finish, Pair 561-128

$184.95 $160.15
GVMR_561-128
.IgnitionCoils All Brackets, Flanges and Hangers Holley EFI Ignition Ignition Coil Brackets Ignition Coil Mounting Bracket Ignition Components Ignitions and Electrical In Stock Sale
Holley is pleased to announce the arrival of our remote coil relocation brackets for all existing LS coil models, as well as for Holley...

Holley EFI LS Spark Plug Wire Set - Cut to Fit 561-113

$204.95 $179.95
GVMR_561-113
.Sparkplugwires All Holley EFI Ignition Ignition Components Ignition Wire and Related Components Ignitions and Electrical In Stock Sale Spark Plug Wire Set Spark Plug Wires
Holley EFI Universal "Cut-to-Fit" spark plug wire sets for GM Ls Engines come with the spark plug terminal and boot installed with the Coil...

Spark Plug Wire Set 561-102

$155.95 $134.95
GVMR_561-102
.Sparkplugwires All Holley EFI Ignition Ignition Components Ignition Wire and Related Components Ignitions and Electrical In Stock Sale Spark Plug Wire Set Spark Plug Wires
Spark Plug Wire set, Red with Grey 45 degree boots designed for 2010-15 Camaro SS with a 6.2L V8 and shorty headersSpark Plug Wire...

Spark Plug Wire Set 561-100

$164.95 $143.05
GVMR_561-100
.Sparkplugwires All Holley EFI Ignition Ignition Components Ignition Wire and Related Components Ignitions and Electrical In Stock Sale Spark Plug Wire Set Spark Plug Wires
Spark Plug Wire set, Black with Black 45 degree boots designed for 2010-15 Camaro SS with a 6.2L V8 and shorty headersSpark Plug Wire...

GM LS2/LS3/LS7, 58X Crank Sensor, USCAR/ EV6 Injector 558-501

$925.95 $808.95
GVMR_558-501
.AirFuelDelivery .FuelDelivery .FuelInjectors Air and Fuel Delivery All Fuel Injection Harness Fuel Injector Harnesses Holley EFI Ignitions and Electrical In Stock Sale Wire, Cable and Related Components Wiring Harnesses
An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important...

Sniper EFI To Holley Dual Sync Distributor Ignition Harness 558-493

$47.77 $42.17
GVMR_558-493
All Holley EFI Ignition Ignition Harness Ignition Wire and Related Components Ignition Wiring Harnesses Ignitions and Electrical In Stock Sale Wiring Harnesses
This ignition adapter ensures your Sniper EFI ignition installation is a snap! Simply plug up both connectors, terminate the Pink Wire to a Switched...

Sniper EFI I/O Harness 558-491

$65.69 $58.04
GVMR_558-491
All Computer Chip Programmer Input Cable Engine Service Engine Wiring Harnesses Holley EFI Ignitions and Electrical In Stock Sale Vehicles, Equipment, Tools, and Supplies Wiring Harnesses
This harness gives you the access to 2 Ground Trigger Inputs, 3 Ground Trigger Outputs, also the Points Output, Tachometer output, and Digital Gauge...

Sniper EFI Main Wiring Harness 558-490

$169.00 $148.45
GVMR_558-490
All Engine Engine Control Module (ECM) Wiring Harness Engine Wiring Harnesses Holley EFI Ignitions and Electrical In Stock Sale Wire, Cable and Related Components Wiring Harnesses
This harness includes the Switched 12v Power Wire, Main Battery Power and Ground, Fuel Pump Relay, Coil - Input wire, and Magnetic Distributor Input...

Fits 1996-2003 Transmissions - Use with Terminator X Max only 558-473

$285.95 $248.35
GVMR_558-473
All Automatic Transmission Components Automatic Transmission Wiring Harness Holley EFI Ignitions and Electrical In Stock Sale Transmission Transmission Wiring Harnesses Wiring Harnesses
If your HEMI swap project is using a Chrysler 46RE Transmission, commonly found in 1996-2003 Dodge Ram - Dakota, or Durango V8 trucks, you...

Delphi M/P 150 to GT (Stainless Steel) MAP Adapter Harness 558-467

$40.50 $19.80
GVMR_558-467
All Emission Control Engine Wiring Harnesses Hardware, Fasteners and Fittings Holley EFI Ignitions and Electrical In Stock Manifold Absolute Pressure Sensor Adapter Sale Wiring Harnesses
These two new MAP sensor adapters from Holley EFI allow you to quickly add a stainless steel MAP sensor to your existing installation. Holley...

Weatherpak to GT (Stainless Steel) MAP Adapter Harness 558-466

$47.57 $41.48
GVMR_558-466
All Emission Control Engine Wiring Harnesses Hardware, Fasteners and Fittings Holley EFI Ignitions and Electrical In Stock Manifold Absolute Pressure Sensor Adapter Sale Wiring Harnesses
These two new MAP sensor adapters from Holley EFI allow you to quickly add a stainless steel MAP sensor to your existing installation. Holley...

Sniper EFI or Terminator X 558-465

$47.45 $45.98
GVMR_558-465
All Computers, Chips, Modules and Programmers Data Cables Gauge Wiring Harness Holley EFI Ignitions and Electrical In Stock Instrument Panel Popular Search (Search Bar) Sale
The Holley EFI CAN splitter allows you to add an additional CAN device to your Sniper EFI or Terminator X installation, without needing to...

Holley EFI Terminator X Wideband Adapter Harness 558-463

$64.95 $62.55
GVMR_558-463
All Electrical Connectors Electrical, Lighting and Body Engine Wiring Harnesses Holley EFI Ignitions and Electrical In Stock Sale Uncategorized Wiring Harness Adapter Wiring Harnesses
Service harness sensor adapter for Terminator X and X Max ECU only.Holley EFI Terminator X Wideband Adapter Harness 558-463

Unterminated input/output wiring 558-456

$286.95 $249.25
GVMR_558-456
.DashTrim Air and Fuel Delivery All Body Wiring Harness and Components Dash Wiring Harnesses Electronic Throttle Harness Holley EFI Ignitions and Electrical In Stock Sale Wiring Harnesses
This wiring kit is intended to fully populate all of the inputs and outputs for part numbers 553-111 and 553-112 Pro Dashes. These can...

4' Male to Female CAN Adapter Harness 558-452

$54.36 $47.42
GVMR_558-452
Air and Fuel Delivery All Computers, Chips, Modules and Programmers Data Cables Fuel Injection Harness Holley EFI Ignitions and Electrical In Stock Sale Wire, Cable and Related Components
4" Male to Female CAN Adapter Harness (for Racepak and other external CAN devices)4' Male to Female CAN Adapter Harness 558-452

Holley EFI Sealed USB Cable 15' 558-438

$137.95 $131.95
GVMR_558-438
All Computer Chip Programmer Input Cable Computers, Chips, Modules and Programmers Data Cables Engine Service Holley EFI Ignitions and Electrical In Stock Sale Tools and Equipment Vehicles, Equipment, Tools, and Supplies
Holley EFI Sealed USB Cable 15'Holley EFI Sealed USB Cable 15' 558-438

Digital Dash I/O Adapter with unterminated Vehicle Harness 558-433

$354.95 $314.95
GVMR_558-433
.Dashes All Dashboard Wiring Harness Electrical, Lighting and Body Gauge Wiring Harnesses Holley EFI Ignitions and Electrical In Stock Sale Wire, Cable and Related Components Wiring Harnesses
Digital Dash I/O Adapter with unterminated Vehicle HarnessDigital Dash I/O Adapter with unterminated Vehicle Harness 558-433

Crank/Cam Ign. Harness. Fully terminated harness. 558-431

$103.95 $89.96
GVMR_558-431
All Engine Wiring Harnesses Holley EFI Ignition Ignition Harness Ignition Wire and Related Components Ignitions and Electrical In Stock Sale Wiring Harnesses
Crank/Cam Ign. Harness for Ferrous Crank/Magnetic Cam Hall Effect Sensors. Fully terminated harness.Crank/Cam Ign. Harness. Fully terminated harness. 558-431

NEW DEVICE TO TWO PIN MAIN HARNESS 558-430

$43.31 $37.77
GVMR_558-430
Air and Fuel Delivery All Engine Wiring Harnesses Fuel Injection Harness Holley EFI Ignitions and Electrical In Stock Sale Wire, Cable and Related Components Wiring Harnesses
The Holley EFI Can Adapter/Power Harness adapts two pin Holley main harness CAN connectors to new style 4 pin CAN devices.NEW DEVICE TO TWO...

Holley EFI GM Drive-By-Wire Harness - Early Truck 558-429

$278.95 $242.95
GVMR_558-429
Air and Fuel Delivery All Engine Wiring Harnesses Fuel Injection Harness Holley EFI Ignitions and Electrical In Stock Sale Wire, Cable and Related Components Wiring Harnesses
Terminator X Max and Dominator EFI GM DBW Harness-Early Truck. Compatible with GM part number 10379038.Holley EFI GM Drive-By-Wire Harness - Early Truck 558-429

CAN Extension Harness - 9'' 558-428

$54.36 $47.42
GVMR_558-428
Air and Fuel Delivery All Engine Wiring Harnesses Fuel Injection Harness Holley EFI Ignitions and Electrical In Stock Sale Wire, Cable and Related Components Wiring Harnesses
Can Extension Harness (for Racepak and other external CAN drives)CAN Extension Harness - 9'' 558-428

CAN EXTENSION HARNESS, 12FT 558-426

$81.95 $71.15
GVMR_558-426
Air and Fuel Delivery All Engine Wiring Harnesses Fuel Injection Harness Holley EFI Ignitions and Electrical In Stock Sale Wire, Cable and Related Components Wiring Harnesses
CAN Extension Harness (for Racepak and other external CAN drives)CAN EXTENSION HARNESS, 12FT 558-426

CAN Extension Harness - 8' 558-425

$67.95 $59.27
GVMR_558-425
Air and Fuel Delivery All Engine Wiring Harnesses Fuel Injection Harness Holley EFI Ignitions and Electrical In Stock Sale Wire, Cable and Related Components Wiring Harnesses
Can Extension Harness (for Racepak and other external CAN drives)CAN Extension Harness - 8' 558-425

Terminator EFI Input/Output Kit 558-420

$54.36 $47.42
GVMR_558-420
.AirFuelDelivery .FuelDelivery .FuelInjectors All Engine Engine Control Module (ECM) Wiring Harness Engine Control Module Wiring Harness Fuel Injector Harnesses Holley EFI Ignitions and Electrical In Stock Sale Wire, Cable and Related Components Wiring Harnesses
PN 558-420 contains 5 extra input/output wires that the base Terminator EFI harness does not contain. It contains Input wires for Inputs 1-4. It...

Holley EFI LS Main Harness to LS3-style MAP Sensor Adapter 558-416

$41.50 $36.19
GVMR_558-416
Air and Fuel Delivery All Engine Wiring Harnesses Fuel Injection Wiring Harness Adapter Hardware, Fasteners and Fittings Holley EFI Ignitions and Electrical In Stock Sale Wiring Harnesses
Holley EFI LS main harnesses have a MAP sensor connecter designed for use with an LS1/2 style MAP sensor. The 558-416 is an adapter...

Holley EFI Sealed USB Cable 7' 558-409

$95.95 $82.97
GVMR_558-409
All Computer Chip Programmer Input Cable Computers, Chips, Modules and Programmers Data Cables Engine Service Holley EFI Ignitions and Electrical In Stock Sale Tools and Equipment Vehicles, Equipment, Tools, and Supplies
7' long sealed USB data cable. This cable is included with the purchase of an HP or Dominator ECU.Holley EFI Sealed USB Cable 7'...

j2A, j2B, j3, j4 Connector & Pin Kit 558-408

$227.95 $197.95
GVMR_558-408
Air and Fuel Delivery All Electrical Connectors Fuel Injector Connector Holley EFI Ignitions and Electrical In Stock Sale Wiring Components Wiring Connectors and Terminals
j2A, j2B, j3, j4 Connector & Pin Kit - Contains connectors & pins, but no wiring. for Dominator EFIj2A, j2B, j3, j4 Connector &...

Dominator EFI Multi Map Selector 558-407

$178.95 $155.65
GVMR_558-407
All Control Modules Electrical Switches and Components Engine Engine Control Module Engine Control Module (ECM) Holley EFI Ignitions and Electrical In Stock Sale Wiring Components
The Multi Map Selector is designed specifically for use with Holley Dominator EFI systems (not HP). It allows for up to four different calibrations...

Terminator X MAX and Dominator EFI GM Drive-By-Wire Harness 558-406

$256.95 $224.95
GVMR_558-406
Air and Fuel Delivery All Engine Wiring Harnesses Fuel Injection Harness Holley EFI Ignitions and Electrical In Stock Sale Wire, Cable and Related Components Wiring Harnesses
Terminator X MAX and Dominator EFI GM Drive-By-Wire HarnessTerminator X MAX and Dominator EFI GM Drive-By-Wire Harness 558-406

Dominator EFI Connector J4 Auxiliary Harness 558-404

$232.95 $224.95
GVMR_558-404
.AirFuelDelivery .FuelDelivery .FuelInjectors All Fuel Injector Harnesses Holley EFI Ignition Ignition Harness Ignition Wire and Related Components Ignitions and Electrical In Stock Sale Wiring Harnesses
Dominator EFI Connector J4 Auxiliary HarnessDominator EFI Connector J4 Auxiliary Harness 558-404

Dominator EFI Connector J3 Auxiliary Harness 558-403

$182.95 $158.35
GVMR_558-403
.AirFuelDelivery .FuelDelivery .FuelInjectors All Fuel Injector Harnesses Holley EFI Ignition Ignition Harness Ignition Wire and Related Components Ignitions and Electrical In Stock Sale Wiring Harnesses
Dominator EFI Connector J3 Auxiliary HarnessDominator EFI Connector J3 Auxiliary Harness 558-403

Dominator EFI Connector J2B Auxiliary Harness 558-402

$182.95 $158.35
GVMR_558-402
All Engine Wiring Harnesses Holley EFI Ignition Ignition Harness Ignition Wire and Related Components Ignitions and Electrical In Stock Sale Wiring Harnesses
Dominator EFI Connector J2B Auxiliary HarnessDominator EFI Connector J2B Auxiliary Harness 558-402

Dominator EFI Connector J2A Auxiliary Harness 558-401

$237.95 $206.05
GVMR_558-401
All Engine Wiring Harnesses Holley EFI Ignition Ignition Harness Ignition Wire and Related Components Ignitions and Electrical In Stock Sale Wiring Harnesses
Used when adding a second wide band oxygen sensor to a Dominator EFI installation.Dominator EFI Connector J2A Auxiliary Harness 558-401

For Dominator, HP, and Terminator X EFI Systems 558-400

$124.95 $115.15
GVMR_558-400
All Engine Wiring Harnesses Holley EFI Ignition Ignition Harness Ignition Wire and Related Components Ignitions and Electrical In Stock Sale Wiring Harnesses
This harness connects to the (8) pin Metri-Pack Input/Output connector located in most Holley EFI main harnesses.For Dominator, HP, and Terminator X EFI Systems...

HyperSpark Ignition Adapter 558-323

$47.57 $41.48
GVMR_558-323
All Holley EFI Ignition Ignition Harness Ignition Wire and Related Components Ignition Wiring Harnesses Ignitions and Electrical In Stock Sale Wiring Harnesses
Designed to plug and play with HyperSpark distributors and Holley EFI main harnesses with an ignition connector, such as part number 558-104.HyperSpark Ignition Adapter...
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