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Holley EFI Transmission Control Harness - GM 4L60 (Pre-2009) and 4L80
$345.95
$299.95
GVMR_558-405
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Expanding our transmission control options for our EFI systems, this harness provides plug and play for Pre-2009 GM 4L60 and 4L80 transmissions using a...
Holley EFI GM Drive-By-Wire Harness - Early Truck
$310.95
$269.95
GVMR_558-429
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Terminator X Max and Dominator EFI GM DBW Harness-Early Truck. Compatible with GM part number 10379038.
Gen III Hemi Main Harness Early w/ TPS and Idle Air Control Connections
$979.95
$849.95
GVMR_558-115
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
This wiring harness interfaces a Holley EFI ECU to a Gen III HEMI engine with an aftermarket cable actuated throttle body. It is meant...
LSx Injector Harness for HP EFI, Dominator EFI and Terminator X.
$205.95
$178.95
GVMR_558-201
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
LSx Injector Harness for HP EFI, Dominator EFI and Terminator X.
Universal 6 Cylinder Injector Harness for HP EFI & Dominator EFI
$245.95
$212.95
GVMR_558-203
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Universal 6 Cylinder Injector Harness for HP EFI & Dominator EFI
Universal Unterminated Injector Harness
$259.95
$226.15
GVMR_558-204
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Universal Unterminated Injector Harness for HP EFI & Dominator EFI(Bosch EV1 style).
2011-2017 Ford Coyote Drive-By-Wire Harness
$317.95
$275.95
GVMR_558-422
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Drive-By-Wire harness for 2011-2017 Ford Coyote (5.0L) engines
Ford V8 Injector Harness for HP EFI & Dominator EFI
$287.95
$255.95
GVMR_558-209
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Ford V8 Injector Harness for HP EFI & Dominator EFI
Gen III HEMI V8 Injector Harness - Bosch/Jetronic and Holley injectors
$215.95
$191.95
GVMR_558-211
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
An Injector Harness is required and Holley offers two. The harness with USCAR/Stock injector connectors will cover most applications that are using the factory...
LS1/6 Main Harness for HP EFI & Dominator EFI
$731.95
$632.95
GVMR_558-102
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
This harness is designed for LS1/6 Engines, from 1997-2004. This harness interfaces with 24x Crank and 1x Cam sensors.
HP EFI ECU & Harness Kits
$3,824.95
$3,399.95
GVMR_550-617N
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Looking for a plug and play kit for your Ford Modular engine? The HP ECU allows you to accurately control the fuel and ignition...
Universal MPFI Main Harness for HP EFI & Dominator EFI
$618.95
$528.95
GVMR_558-104
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Universal MPFI Main Harness for HP EFI & Dominator EFI
Unterminated Universal Main Harness for HP EFI & Dominator EFI
$618.95
$528.95
GVMR_558-105
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Unterminated Universal Main Harness for HP EFI & Dominator EFI
Ford 2V & 4V Modular Main Harness, For HP EFI & Dominator EFI
$899.95
$799.95
GVMR_558-108
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Main harness for 99-04 2 & 4 Valve Ford Modular (4.6 & 5.4L) Engines.
Used with 24x/1x Gen 3 LS with Terminator Throttle Body Fuel Injection
$806.95
$699.95
GVMR_558-111
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
This harness is used with Dominator, HP, Terminator X, and Terminator X Max when using a Terminator or Terminator Stealth throttle body injection unit...
Used with 58x/4x Gen 4 LS with Terminator Throttle Body Fuel Injection
$787.95
$699.95
GVMR_558-112
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Intended for use with Dominator, HP, Terminator X, and Terminator X Max ECU's when using a Terminator or Terminator Stealth throttle body injection unit...
Holley EFI GM Drive-By-Wire Harness
$281.95
$249.95
GVMR_558-406
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Dominator EFI GM Drive-By-Wire Harness
Dominator EFI GM Dual Drive-By-Wire Harness
$425.95
$368.95
GVMR_558-411
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Dominator EFI GM Dual Drive-By-Wire Harness
LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI
$731.95
$632.95
GVMR_558-103
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
This harness has been designed to interface with 58x crank and 4x cam sensors. These engines are commonly found in 2006+ Year Model vehicles...
CAN Extension Harness - 8'
$75.95
$65.85
GVMR_558-425
Air and Fuel Delivery
Best Sellers
Fuel Injection Harness
Wire, Cable and Related Components
Can Extension Harness (for Racepak and other external CAN drives)
CAN EXTENSION HARNESS, 12FT
$91.95
$79.05
GVMR_558-426
Air and Fuel Delivery
Best Sellers
Fuel Injection Harness
Wire, Cable and Related Components
CAN Extension Harness (for Racepak and other external CAN drives)
CAN Extension Harness - 9''
$60.95
$52.69
GVMR_558-428
Air and Fuel Delivery
Best Sellers
Fuel Injection Harness
Wire, Cable and Related Components
Can Extension Harness (for Racepak and other external CAN drives)
V8 over Manifold, Bosch Style Injector Harness
$230.95
$199.95
GVMR_558-200
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
V8 over Manifold, Bosch Style Connector Harness for Avenger EFI, HP EFI, Dominator EFI and Terminator X. GM / Chrysler Cylinder Orientation
TPI/Stealth Ram™ Main Harness for Avenger EFI, HP EFI & Dominator EFI
$731.95
$632.95
GVMR_558-101
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
TPI/Stealth Ram™ Main Harness for Avenger EFI, HP EFI & Dominator EFI
Holley EFI Ford GT500 and 3V Drive-by-Wire Throttle Body Harness
$546.95
$474.95
GVMR_558-461
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
Introducing a new Holley EFI DBW Throttle Body wiring harness for the OEM (Original Equipment Manufacturer) Ford Throttle Body commonly found on 2005-2010 Mustang...
12" Male to Female CAN Adapter Harness
$50.42
$43.73
GVMR_558-451
Air and Fuel Delivery
Best Sellers
Fuel Injection Harness
Wire, Cable and Related Components
12" Male to Female CAN Adapter Harness (for Racepak and other external CAN devices)
4' Male to Female CAN Adapter Harness
$60.95
$52.69
GVMR_558-452
Air and Fuel Delivery
Best Sellers
Fuel Injection Harness
Wire, Cable and Related Components
4" Male to Female CAN Adapter Harness (for Racepak and other external CAN devices)
8' Male to Female CAN Adapter Harness
$75.95
$65.85
GVMR_558-453
Air and Fuel Delivery
Best Sellers
Fuel Injection Harness
Wire, Cable and Related Components
8' Male to Female CAN Adapter Harness (for Racepak and other external CAN devices)
12' Male to Female CAN Adapter Harness
$106.95
$92.19
GVMR_558-454
Air and Fuel Delivery
Best Sellers
Fuel Injection Wiring Harness Adapter
Hardware, Fasteners and Fittings
12 feet long Male to Female CAN Adapter Harness (for Racepak and other external CAN devices)
Holley EFI EV6 Unterminated Injector Harness Kit
$172.95
$149.95
GVMR_558-216
Air and Fuel Delivery
Fuel Injection Harness
Wire, Cable and Related Components
This harness kit comes with everything you need to build a custom cut to fit EV6 injector harness for an 8 cylinder engine. Don't...
Holley Terminator X Fuel Injectors - Set of Eight
$731.95
$649.95
GVMR_522-428
Air and Fuel Delivery
Fuel Injection System and Related Components
Fuel Injector
Holley EFI Fuel Injectors feature a precision lapped disc valve, high-quality brass windings, and high-temp O-rings. These injectors provide excellent linearity with no discernible...
Fuel Injector Performance Commander 950 Systems 60 PPH@12 PSI 85 PPH@21 PSI
$253.95
$219.95
GVMR_522-43
Air and Fuel Delivery
Fuel Injection System and Related Components
Fuel Injector
Fuel Injector Performance Commander 950 Systems 60 PPH@12 PSI 85 PPH@21 PSI
Holley Terminator X Fuel Injectors - Set of Eight
$731.95
$649.95
GVMR_522-488
Air and Fuel Delivery
Fuel Injection System and Related Components
Fuel Injector
Holley EFI Fuel Injectors feature a precision lapped disc valve, high-quality brass windings, and high-temp O-rings. These injectors provide excellent linearity with no discernible...
Holley Terminator X Fuel Injectors - Set of Eight
$775.95
$672.95
GVMR_522-248
Air and Fuel Delivery
Fuel Injection System and Related Components
Fuel Injector
Holley EFI Fuel Injectors feature a precision lapped disc valve, high-quality brass windings, and high-temp O-rings. These injectors provide excellent linearity with no discernible...
160 lb/hr Performance Fuel Injector - Individual
$182.95
$158.95
GVMR_522-161
Air and Fuel Delivery
Fuel Injection System and Related Components
Fuel Injector
Holley EFI Fuel Injectors feature a precision lapped disc valve, high-quality brass windings, and high-temp O-rings. These injectors provide excellent linearity with no discernible...
Fuel Filter
$47.19
$40.93
GVMR_562-1
Air and Fuel Delivery
Best Sellers
Filters
Fuel Filter
10 micron post filter with dual 3/8" barbs.
