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Holley EFI Terminator X Stealth 4150 - Black 550-1005

$2,812.95 $2,249.95
550-1005
.AirFuelDelivery .ThrottleBodies All Holley EFI Out of Stock
8 Injectors - supports up to 1250hp (Forced Induction) The Terminator X Stealth 4150 1250HP EFI system from Holley features 8, 100LB/HR Fuel Injectors...

For 1979 to 1993 Ford Mustangs when converting to Holley EFI ECU 558-513

$1,068.95 $949.95
GVMR_558-513
.AirFuelDelivery .FuelDelivery Air and Fuel Delivery All Fuel Injection Harness Holley EFI In Stock Sale Wire, Cable and Related Components
This harness kit is for fuel injected small block Ford engines such as 5.0L or 5.8L Windsor. Plug and play ignition capability with Dual...

Holley EFI Terminator X Max Transmission Kit - GM 6L80/90 558-499

$645.95 $573.95
GVMR_558-499
All Automatic Transmission Components Automatic Transmission Wiring Harness Holley EFI In Stock Popular Search (Search Bar) Sale Transmission
If you currently have a Terminator X ECU, upgrading to a Terminator X Max ECU can be easily done by plugging your main harness...

Pro Dash M8 Service Harness 558-486

$139.95 $134.95
GVMR_558-486
.Dashes All Gauge Wiring Harness Holley EFI In Stock Instrument Panel Sale
M8 Service Harness for 6.86" and 12.3" M8 Pro Dash products.Pro Dash M8 Service Harness 558-486

Sniper 2 EFI M8 Extension Harness - 8-Foot Length 558-485

$50.46 $44.85
GVMR_558-485
.AirFuelDelivery .FuelDelivery Air and Fuel Delivery All Fuel Injection Wiring Harness Adapter Hardware, Fasteners and Fittings Holley EFI In Stock Sale
Ideal for connecting any Sniper 2 EFI M8 accessories such as the Bluetooth module, 5" Sniper 2 Dash, or 12.3" and 6.86" Pro Dash.Sniper...

M8 Extension Harness for Sniper 2 - 4ft 558-484

$44.15
GVMR_558-484
All Electrical, Lighting and Body Engine Wiring Harness Extension Holley EFI In Stock Sale Wire, Cable and Related Components
Ideal for connecting any Sniper 2 EFI M8 accessories such as the Bluetooth Module, 5" Sniper 2 Dash, or 12.3" and 6.86" Pro DashM8...

Holley EFI Transmission Harness - TKO 558-482

$237.95 $228.95
GVMR_558-482
All Holley EFI In Stock Manual Transmission Components Manual Transmission Wiring Harness Sale Transmission
Tremec TKX - TKO Transmission Harness - Terminated for VSS - Reverse Lockout and Reverse LightsHolley EFI Transmission Harness - TKO 558-482

Holley EFI Transmission Harness - T-56 558-481

$257.95
GVMR_558-481
All Holley EFI In Stock Manual Transmission Components Manual Transmission Wiring Harness Popular Search (Search Bar) Sale Transmission
F-Body T-56 Transmission Harness - Terminated for VSS - Reverse Lockout and Reverse LightsHolley EFI Transmission Harness - T-56 558-481

Holley EFI Transmission Harness - T-56 Magnum 558-480

$237.95
GVMR_558-480
All Holley EFI In Stock Manual Transmission Components Manual Transmission Wiring Harness Sale Transmission
T-56 Magnum Transmission Harness - Terminated for VSS, Reverse Lockout, and Reverse Lights.Holley EFI Transmission Harness - T-56 Magnum 558-480

Holley EFI Ford Crank Sensor Module - Ford 7.3L Godzilla 558-474

$64.95 $57.49
GVMR_558-474
.Sensors All Electrical, Lighting and Body Engine Crankshaft Position Sensor Wiring Harness Holley EFI In Stock Sale Wire, Cable and Related Components
Crank signal conditioning module for HP, Dominator, and Terminator X ECU's. Requires Holley EFI V6 Build 300 or Terminator X V3 Build 100, or...

Throttle Body - JL3E-9F991-AA - Throttle Pedal - BR3Z-9F836-D 558-469

$314.95 $279.95
GVMR_558-469
All Electrical, Lighting and Body Holley EFI In Stock Popular Search (Search Bar) Sale Throttle Body Wiring Harness Wire, Cable and Related Components
The Holley Dominator and Terminator X Max ECU’s have built-in capability to control the Drive-By-Wire throttle pedals and throttle bodies used on most 2018-2022...

This is the harness included with standalone pro dashes. 558-457

$393.95 $349.95
GVMR_558-457
.Dashes All Display Wiring Harness Electrical, Lighting and Body Holley EFI In Stock Sale Wire, Cable and Related Components
Holley EFI Pro Dash replacement harness for standalone digital dashes.This is the harness included with standalone pro dashes. 558-457

Pro-Billet Distributor or Magnetic Crank Trigger 558-330

$44.15 $39.24
GVMR_558-330
All Holley EFI Ignition Ignition Harness Ignition Wire and Related Components In Stock Popular Search (Search Bar) Sale
Tachometer input ignition adapter used for applications with Pro-Billet Distributor or Magnetic Crank Trigger.Pro-Billet Distributor or Magnetic Crank Trigger 558-330

Sniper 2 Tachometer Input Ignition Adapter 558-329

$28.91
GVMR_558-329
All Hardware, Fasteners and Fittings Holley EFI In Stock Popular Search (Search Bar) Sale Tachometer Adapter
Adapter used on applications using a CD ignition box while not using timing control.Sniper 2 Tachometer Input Ignition Adapter 558-329

Holley EFI GM GEN V GDI Subharness 558-221

$168.95 $149.95
GVMR_558-221
.AirFuelDelivery .FuelDelivery Air and Fuel Delivery All Fuel Injection Harness Holley EFI In Stock Sale Wire, Cable and Related Components
GM GEN V GDI Sub harness for Late LTx Engines. The fuel pressure sensor easily identifies these engines, Late engines use a 3-pin fuel...

Holley EFI GM GEN V GDI Subharness 558-220

$168.95 $149.95
GVMR_558-220
.AirFuelDelivery .FuelDelivery Air and Fuel Delivery All Fuel Injection Harness Holley EFI In Stock Sale Wire, Cable and Related Components
GM GEN V GDI Sub harness for early LTx Engines. The fuel pressure sensor easily identifies these engines, early engines use a 4-pin fuel...

Ford 7.3L Godzilla Main Harness for Smart Coils 558-141

$520.95 $499.95
GVMR_558-141
.AirFuelDelivery .FuelDelivery Air and Fuel Delivery All Fuel Injection Harness Holley EFI In Stock Sale Wire, Cable and Related Components
The Terminator X offers an advanced engine management solution specifically tailored for the formidable 7.3-liter Godzilla engine. Designed to unlock the full potential of...

Ford 7.3L Godzilla Main Harness for Stock Coils 558-140

$562.95 $499.95
GVMR_558-140
.AirFuelDelivery .FuelDelivery Air and Fuel Delivery All Fuel Injection Harness Holley EFI In Stock Sale Wire, Cable and Related Components
The Terminator X offers an advanced engine management solution specifically tailored for the formidable 7.3-liter Godzilla engine. Designed to unlock the full potential of...

For use with Terminator X - Requires V3 Software 558-130

$646.95 $574.95
GVMR_558-130
.Modules .ModulesProgrammersMonitors .TunersProgrammersModules All Engine Engine Control Module (ECM) Wiring Harness Holley EFI In Stock Sale Wire, Cable and Related Components
This harness is designed for use with Terminator X ECU's Only with V3 build 100 or later.For use with Terminator X - Requires V3...

Service GDI Controller for Terminator X GM Gen V LT 554-150

$1,042.95 $999.95
GVMR_554-150
.AirFuelDelivery .FuelDelivery Air and Fuel Delivery All Control Modules Fuel Injection Electronic Control Unit Holley EFI In Stock Sale
Take control of your GM Gen V LT4, LT1, L83, or L86 engine with Terminator X! Do not settle for a factory ECU with...

Holley EFI 6.86" M8 Pro Dash 553-112X

$1,425.95 $1,249.95
GVMR_553-112X
.Dashes .GaugePodsMounts All Holley EFI In Stock Instrument Cluster Instrument Panel Sale
Engineered with trust in mind, the Sniper 2 EFI Pro Dash series is your dependable partner on the track, providing the confidence you need...

Holley EFI 12.3" M8 Pro Dash 553-111X

$2,606.95
GVMR_553-111X
.Dashes .GaugePodsMounts All Holley EFI In Stock Instrument Cluster Instrument Panel Sale
Engineered with trust in mind, the Sniper 2 EFI Pro Dash series is your dependable partner on the track, providing the confidence you need...

Holley O-ring Kit for Low Profile Intake Manifold - Ford 7.3L Godzilla 300-906

$48.32 $11.24
GVMR_300-906
.AirFuelDelivery .GasketsSeals .IntakeManifolds All Engine Engine Intake Manifold Gasket Set Gaskets and Sealing Systems Holley EFI In Stock Popular Search (Search Bar) Sale
This service part is included with Holley's low-profile intake manifold for the Ford 7.3L "Godzilla" engine. To purchase the hardware kit that includes the...

Holley Hardware and O-ring Kit - Ford 7.3L Godzilla 300-905

$78.95 $19.16
GVMR_300-905
.AirFuelDelivery .GasketsSeals .IntakeManifolds All Engine Engine Intake Manifold Gasket Set Gaskets and Sealing Systems Holley EFI In Stock Popular Search (Search Bar) Sale
This service part is included with Holley's low-profile intake manifold for the Ford 7.3L "Godzilla" engine.Holley Hardware and O-ring Kit - Ford 7.3L Godzilla...

Stud Kit, LS3 Lo-Ram Intake Manifold Mounting 300-686

$28.43 $25.27
GVMR_300-686
.AirFuelDelivery .FastenersHardware .IntakeManifolds All Engine Engine Intake Manifold Bolt Set Hardware, Fasteners and Fittings Holley EFI In Stock Sale
Stud Kit, LS3 Lo-Ram Intake Manifold MountingStud Kit, LS3 Lo-Ram Intake Manifold Mounting 300-686

Holley EFI 15-90 PSI Fuel Regulator 8AN Boost Reference 1:1, Gauge and Fittings 12-895KIT

$256.95 $227.95
GVMR_12-895KIT
.AirFuelDelivery .FuelDelivery Air and Fuel Delivery All Fuel Injection Pressure Regulator Fuel Injection System and Related Components Holley EFI In Stock Sale
Holley EFI universal bypass fuel pressure regulators are for use with fuel systems in street or track applications. They feature adjustable base pressure from...

Holley EFI 15-90 PSI Fuel Regulator 6AN Boost Reference 1:1, Gauge and Fittings 12-894KIT

$266.95 $236.95
GVMR_12-894KIT
.AirFuelDelivery .FuelDelivery Air and Fuel Delivery All Fuel Injection Pressure Regulator Fuel Injection System and Related Components Holley EFI In Stock Popular Search (Search Bar) Sale
Holley EFI universal bypass fuel pressure regulators are for use with fuel systems in street or track applications. They feature adjustable base pressure from...

Fits 1988-1998 GMT400 C/K Series Trucks 12-354

$584.95 $519.95
GVMR_12-354
.AirFuelDelivery .FuelDelivery .Modules .ModulesProgrammersMonitors .TunersProgrammersModules Air and Fuel Delivery All Fuel Pump Module Assembly Fuel Pumps and Related Components Holley EFI In Stock Sale
The flange has a 6AN o-ring outlet and return port making the plumbing connections easy. The kit includes the assembled module, a new filter...

Holley EFI Fuel Pump Module - 525 LPH 12-347

$485.95 $431.95
GVMR_12-347
.AirFuelDelivery .FuelDelivery .Modules .ModulesProgrammersMonitors .TunersProgrammersModules Air and Fuel Delivery All Fuel Pump Module Assembly Fuel Pumps and Related Components Holley EFI In Stock Sale
This direct fit fuel pump module will drop directly into any 1983-1997 Ford Mustang EFI fuel tank, designed with a 525 LPH (liters per...

Pro Stock Throttle Body - VED Oval Flange 112-123

$1,518.95 $1,349.95
GVMR_112-123
.AirFuelDelivery .FuelDelivery Air and Fuel Delivery All Fuel Injection System and Related Components Fuel Injection Throttle Body Holley EFI In Stock Sale
The Holley EFI billet aluminum Pro Stock throttle body is designed to fit Visner Engine Development's oval mounting flange.Pro Stock Throttle Body - VED...

Standard 12" x 6" size with high gloss graphics on embossed aluminum 36-579

$12.26 $10.90
GVMR_36-579
Accessories All Exterior Accessories Holley EFI In Stock License Plate Popular Search (Search Bar) Sale
Official Holley EFI license plate…perfect addition to any vehicle when your state doesn't require a front state issued license plate. Also, great for the...

Gen-V LT Hi-Ram Fuel Rail Adapter Kit 534-224

$326.95 $289.95
GVMR_534-224
.AirFuelDelivery .FuelDelivery .FuelInjectors Air and Fuel Delivery All Fuel Injection System and Related Components Fuel Injector Rail Holley EFI In Stock Sale
This fuel rail kit is specifically designed to work with the Holley GM Gen V LT1 EnginesGen-V LT Hi-Ram Fuel Rail Adapter Kit 534-224

Holley EFI Laptop Tuning Mat 36-448

$14.40 $7.04
GVMR_36-448
All Holley EFI In Stock Popular Search (Search Bar) Sale Shop Equipment, Tools and Accessories Utility Mat Vehicles, Equipment, Tools, and Supplies
Check out Holley EFI's laptop tuning mat. Designed to protect your vehicle's paint while giving you a soft and secure area for your laptop...

Holley EFI Intake - Chevy Big Block V8 EFI 300-564

$674.95 $599.95
GVMR_300-564
.AirFuelDelivery .IntakeManifolds All Cylinder Block Components Engine Engine Intake Manifold Holley EFI In Stock Sale
Holley EFI is excited to launch four new multi-point fuel injection intake manifolds for the big block Chevy. These new intakes are available to...

Holley EFI Intake - Chevy Big Block V8 EFI 300-563

$698.95 $620.95
GVMR_300-563
.AirFuelDelivery .IntakeManifolds All Cylinder Block Components Engine Engine Intake Manifold Holley EFI In Stock Sale
Holley EFI is excited to launch four new multi-point fuel injection intake manifolds for the big block Chevy. These new intakes are available to...

Holley EFI Intake - Chevy Big Block V8 EFI 300-561

$731.95 $649.95
GVMR_300-561
.AirFuelDelivery .IntakeManifolds All Cylinder Block Components Engine Engine Intake Manifold Holley EFI In Stock Sale
Holley EFI is excited to launch four new multi-point fuel injection intake manifolds for the big block Chevy. These new intakes are available to...
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