Holley EFI GM LS2/LS3/LS7, 58X Crank Sensor, USCAR/ EV6 Injector 558-501
$822.95
GVMR_558-501
.AirFuelDelivery
.FuelDelivery
.FuelInjectors
Air and Fuel Delivery
All
Fuel Injection Harness
Fuel Injector Harnesses
Holley EFI
Ignitions and Electrical
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...
Holley EFI Sniper EFI To Holley Dual Sync Distributor Ignition Harness 558-493
$42.99
GVMR_558-493
All
Holley EFI
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignition Wiring Harnesses
Ignitions and Electrical
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...
Holley EFI Sniper EFI I/O Harness 558-491
$59.15
GVMR_558-491
All
Computer Chip Programmer Input Cable
Engine Service
Engine Wiring Harnesses
Holley EFI
Ignitions and Electrical
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...
Holley EFI Sniper EFI Main Wiring Harness 558-490
$151.95
GVMR_558-490
All
Engine
Engine Control Module (ECM) Wiring Harness
Engine Wiring Harnesses
Holley EFI
Ignitions and Electrical
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...
Holley EFI Fits 1996-2003 Transmissions - Use with Terminator X Max only 558-473
$253.95
GVMR_558-473
All
Automatic Transmission Components
Automatic Transmission Wiring Harness
Holley EFI
Ignitions and Electrical
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...
Holley EFI Ford 4R70W/4R75W Transmission Control Harness (98+) 558-470
$247.95
GVMR_558-470
All
Automatic Transmission Components
Automatic Transmission Wiring Harness
Holley EFI
Ignitions and Electrical
Sale
Transmission
Transmission Wiring Harnesses
Wiring Harnesses
Ford 4R70W/4R75W Transmission Harness - Complete terminated harness with j4 connector to operate 1998+ Ford electronic transmissions, for Dominator EFI and Terminator X Max...
Holley EFI Delphi M/P 150 to GT (Stainless Steel) MAP Adapter Harness 558-467
$34.95
$23.40
GVMR_558-467
All
Emission Control
Engine Wiring Harnesses
Hardware, Fasteners and Fittings
Holley EFI
Ignitions and Electrical
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...
Holley EFI Weatherpak to GT (Stainless Steel) MAP Adapter Harness 558-466
$42.28
GVMR_558-466
All
Emission Control
Engine Wiring Harnesses
Hardware, Fasteners and Fittings
Holley EFI
Ignitions and Electrical
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...
Holley EFI Sniper EFI or Terminator X 558-465
$42.18
GVMR_558-465
All
Computers, Chips, Modules and Programmers
Data Cables
Gauge Wiring Harness
Holley EFI
Ignitions and Electrical
Instrument Panel
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 Holley EFI Terminator X Wideband Adapter Harness 558-463
$57.35
GVMR_558-463
All
Electrical Connectors
Electrical, Lighting and Body
Engine Wiring Harnesses
Holley EFI
Ignitions and Electrical
Sale
Wiring Harness Adapter
Wiring Harnesses
Service harness sensor adapter for Terminator X and X Max ECU only.Holley EFI Holley EFI Terminator X Wideband Adapter Harness 558-463Specifications: Brand Holley EFI...
Holley EFI Unterminated input/output wiring 558-456
$254.95
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
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...
Holley EFI 4' Male to Female CAN Adapter Harness 558-452
$48.32
GVMR_558-452
Air and Fuel Delivery
All
Computers, Chips, Modules and Programmers
Data Cables
Fuel Injection Harness
Holley EFI
Ignitions and Electrical
Sale
Wire, Cable and Related Components
4" Male to Female CAN Adapter Harness (for Racepak and other external CAN devices)Holley EFI 4' Male to Female CAN Adapter Harness 558-452Specifications: Brand...
Holley EFI Compatible w/ Holley EFI, Sniper EFI, and Terminator X Software 558-443
$73.85
GVMR_558-443
All
Computer Chip Programmer Input Cable
Computers, Chips, Modules and Programmers
Data Cables
Engine Service
Holley EFI
Ignitions and Electrical
Sale
Vehicles, Equipment, Tools, and Supplies
The CAN to USB communication cable provides the user with real tuning time access to the ECU. This cable can be used with Holley...
Holley EFI Digital Dash I/O Adapter with unterminated Vehicle Harness 558-433
$314.95
GVMR_558-433
.Dashes
All
Dashboard Wiring Harness
Electrical, Lighting and Body
Gauge Wiring Harnesses
Holley EFI
Ignitions and Electrical
Sale
Wire, Cable and Related Components
Wiring Harnesses
Digital Dash I/O Adapter with unterminated Vehicle HarnessHolley EFI Digital Dash I/O Adapter with unterminated Vehicle Harness 558-433Specifications: Description_INV KIT, I/O ADAPTER WITH UNTERMINATED...
Holley EFI Crank/Cam Ign. Harness. Fully terminated harness. 558-431
$91.79
GVMR_558-431
All
Engine Wiring Harnesses
Holley EFI
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
Sale
Wiring Harnesses
Crank/Cam Ign. Harness for Ferrous Crank/Magnetic Cam Hall Effect Sensors. Fully terminated harness.Holley EFI Crank/Cam Ign. Harness. Fully terminated harness. 558-431Specifications: Description_INV IGNITION HARNESS,...
Holley EFI NEW DEVICE TO TWO PIN MAIN HARNESS 558-430
$38.50
GVMR_558-430
Air and Fuel Delivery
All
Engine Wiring Harnesses
Fuel Injection Harness
Holley EFI
Ignitions and Electrical
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.Holley EFI NEW DEVICE...
Holley EFI Holley EFI GM Drive-By-Wire Harness - Early Truck 558-429
$247.95
GVMR_558-429
Air and Fuel Delivery
All
Engine Wiring Harnesses
Fuel Injection Harness
Holley EFI
Ignitions and Electrical
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 Holley EFI GM Drive-By-Wire Harness - Early...
Holley EFI CAN Extension Harness - 9'' 558-428
$48.32
GVMR_558-428
Air and Fuel Delivery
All
Engine Wiring Harnesses
Fuel Injection Harness
Holley EFI
Ignitions and Electrical
Sale
Wire, Cable and Related Components
Wiring Harnesses
Can Extension Harness (for Racepak and other external CAN drives)Holley EFI CAN Extension Harness - 9'' 558-428Specifications: Brand Holley EFI Category Air and Fuel...
Holley EFI CAN EXTENSION HARNESS, 12FT 558-426
$72.51
GVMR_558-426
Air and Fuel Delivery
All
Engine Wiring Harnesses
Fuel Injection Harness
Holley EFI
Ignitions and Electrical
Sale
Wire, Cable and Related Components
Wiring Harnesses
CAN Extension Harness (for Racepak and other external CAN drives)Holley EFI CAN EXTENSION HARNESS, 12FT 558-426Specifications: Description_INV CAN EXTENSION HARNESS, 12FT Description_DES CAN EXTENSION...
Holley EFI CAN Extension Harness - 8' 558-425
$60.41
GVMR_558-425
Air and Fuel Delivery
All
Engine Wiring Harnesses
Fuel Injection Harness
Holley EFI
Ignitions and Electrical
Sale
Wire, Cable and Related Components
Wiring Harnesses
Can Extension Harness (for Racepak and other external CAN drives)Holley EFI CAN Extension Harness - 8' 558-425Specifications: Brand Holley EFI Emission Code 5 Product...
Holley EFI Terminator EFI Input/Output Kit 558-420
$48.32
GVMR_558-420
.AirFuelDelivery
.FuelDelivery
.FuelInjectors
All
Engine
Engine Control Module (ECM) Wiring Harness
Fuel Injector Harnesses
Holley EFI
Ignitions and Electrical
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 Holley EFI LS Main Harness to LS3-style MAP Sensor Adapter 558-416
$36.89
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
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 Holley EFI Sealed USB Cable 7' 558-409
$84.59
GVMR_558-409
All
Computer Chip Programmer Input Cable
Computers, Chips, Modules and Programmers
Data Cables
Engine Service
Holley EFI
Ignitions and Electrical
Sale
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 Holley EFI Sealed USB...
Holley EFI j2A, j2B, j3, j4 Connector & Pin Kit 558-408
$201.95
GVMR_558-408
Air and Fuel Delivery
All
Electrical Connectors
Fuel Injector Connector
Holley EFI
Ignitions and Electrical
Sale
Wiring Components
Wiring Connectors and Terminals
j2A, j2B, j3, j4 Connector & Pin Kit - Contains connectors & pins, but no wiring. for Dominator EFIHolley EFI j2A, j2B, j3, j4...
Holley EFI Dominator EFI Multi Map Selector 558-407
$158.95
GVMR_558-407
All
Control Modules
Electrical Switches and Components
Engine
Engine Control Module (ECM)
Holley EFI
Ignitions and Electrical
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...
Holley EFI Terminator X MAX and Dominator EFI GM Drive-By-Wire Harness 558-406
$227.95
GVMR_558-406
Air and Fuel Delivery
All
Engine Wiring Harnesses
Fuel Injection Harness
Holley EFI
Ignitions and Electrical
Sale
Wire, Cable and Related Components
Wiring Harnesses
Terminator X MAX and Dominator EFI GM Drive-By-Wire HarnessHolley EFI Terminator X MAX and Dominator EFI GM Drive-By-Wire Harness 558-406Specifications: Description_INV GM DBW HARNESS...
Holley EFI Dominator EFI Connector J4 Auxiliary Harness 558-404
$206.95
GVMR_558-404
.AirFuelDelivery
.FuelDelivery
.FuelInjectors
All
Fuel Injector Harnesses
Holley EFI
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
Sale
Wiring Harnesses
Dominator EFI Connector J4 Auxiliary HarnessHolley EFI Dominator EFI Connector J4 Auxiliary Harness 558-404Specifications: Description_INV J4 CONNECTOR & HARNESS Description_ASC Note when purchasing this...
Holley EFI Dominator EFI Connector J3 Auxiliary Harness 558-403
$161.95
GVMR_558-403
.AirFuelDelivery
.FuelDelivery
.FuelInjectors
All
Fuel Injector Harnesses
Holley EFI
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
Sale
Wiring Harnesses
Dominator EFI Connector J3 Auxiliary HarnessHolley EFI Dominator EFI Connector J3 Auxiliary Harness 558-403Specifications: Brand Holley EFI Category Ignition Emission Code 3 Harness Type...
Holley EFI Dominator EFI Connector J2B Auxiliary Harness 558-402
$161.95
GVMR_558-402
All
Engine Wiring Harnesses
Holley EFI
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
Sale
Wiring Harnesses
Dominator EFI Connector J2B Auxiliary HarnessHolley EFI Dominator EFI Connector J2B Auxiliary Harness 558-402Specifications: Description_INV J2B CONNECTOR & HARNESS Description_DES Dominator EFI Auxiliary Harness...
Holley EFI Dominator EFI Connector J2A Auxiliary Harness 558-401
$210.95
GVMR_558-401
All
Engine Wiring Harnesses
Holley EFI
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
Sale
Wiring Harnesses
Used when adding a second wide band oxygen sensor to a Dominator EFI installation.Holley EFI Dominator EFI Connector J2A Auxiliary Harness 558-401Specifications: Brand Holley...
Holley EFI For Dominator, HP, and Terminator X EFI Systems 558-400
$110.95
GVMR_558-400
All
Engine Wiring Harnesses
Holley EFI
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
Sale
Wiring Harnesses
This harness connects to the (8) pin Metri-Pack Input/Output connector located in most Holley EFI main harnesses.Holley EFI For Dominator, HP, and Terminator X...
Holley EFI HyperSpark Ignition Adapter 558-323
$42.28
GVMR_558-323
All
Holley EFI
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignition Wiring Harnesses
Ignitions and Electrical
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.Holley EFI HyperSpark...
Holley EFI LS COIL HARNESSES 558-321
$179.95
GVMR_558-321
All
Holley EFI
Ignition
Ignition Coil Assembly Wiring Harness
Ignition Wire and Related Components
Ignition Wiring Harnesses
Ignitions and Electrical
Sale
Wiring Harnesses
Are you tired of scouring the junkyard for stock ls coil sub harnesses? Introducing the new Holley EFI LS Coil Sub Harness. This coil...
Holley EFI “Big Wire” C-N-P Ignition Sub Harness 558-318
$247.95
GVMR_558-318
All
Holley EFI
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignition Wiring Harnesses
Ignitions and Electrical
Sale
Wiring Harnesses
"Big Wire" Sub Harness- pre wired with 12ga power and grounds, for optimal performance!Holley EFI “Big Wire” C-N-P Ignition Sub Harness 558-318Specifications: Brand Holley...
Holley EFI For use with Holley® HP and Dominator ECUs and other EFI systems 558-312
$241.95
GVMR_558-312
All
Holley EFI
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignition Wiring Harnesses
Ignitions and Electrical
Sale
Wiring Harnesses
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...
Holley EFI Main Power Harness for Avenger EFI, HP EFI, & Dominator EFI 558-308
$90.75
GVMR_558-308
All
Engine Wiring Harnesses
Holley EFI
Ignition
Ignition Harness
Ignition Wire and Related Components
Ignitions and Electrical
Sale
Wiring Harnesses
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...