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Holley EFI Harness Kit UNIVERSAL

Brand: Holley | Category: Wiring Harnesses

Fitments

UNIVERSAL
558-500 Harness Kit
LS1/6
24X
Bosch/Jetronic Injector
558-501 Harness Kit
LS2/3/7
58X
USCAR Injector
558-502 Harness Kit
LS2/3/7
58X
Bosch/Jetronic Injector
558-503 Harness Kit
TPI/Stealthram
558-504 Harness Kit
Universal V8 MPFI
558-505 Harness Kit
Ford Modular 2V
558-506 Harness Kit
Ford Modular 4V
558-507 Harness Kit
Ford Coyote
558-508 Harness Kit
Universal Ford V-8
558-115 Holley EFI Gen III HEMI (Early) Engine Main Wiring Harness
w/ Throttle Position Sensor & Idle Air Control
For Use w/ Cable Throttle Body
550-616N Harness Kit
2 Valve Ford Modular Engine
Bosch/Jetronic Injector
Includes NTK Oxygen Sensor
558-112 Terminator EFI Main Wiring Harness
For TBI, LSX, 58X
558-116 Holley EFI Gen III HEMI (Late) Engine Main Wiring Harness
w/ Throttle Position Sensor & Idle Air Control
For Late Crank & Cam Sensors
For Use w/ Cable Throttle Body
For HP EFI & Dominator EFI
558-113 Holley EFI Ford Modular 2V & 4V Engine Main Wiring Harness
For Use With Holley Smart Coils
558-450 Drive-By-Wire Dual Throttle Body Harness
For Chrysler HEMI
Requires Pedal Assembly Part Number 0486 1714
558-493 Sniper EFI to Holley EFI Dual Sync Distributor Adapter Harness
558-111 Terminator EFI Main Wiring Harness
For TBI, LSX, 24X
558-114 Holley EFI Ford Coyote TI-VCT Engine Main Wiring Harness
For HP EFI & Dominator EFI
For Use With Holley Smart Coils
550-617N Harness Kit
4 Valve Ford Modular Engine
Bosch/Jetronic Injector
Includes NTK Oxygen Sensor
558-214 LS Multec 2 Injector Harness
Early Truck
558-490 Sniper EFI Main Harness

Product Description

Take control of your engine with Holley EFI plug and play Harness kits.

Tired of jumping through hoops and having to play tricks with the factory ECU? Welcome to the better way. Is your cam too wild for a MAF? No problem.

Power adders? Bring ‘em on. We’ve got integral nitrous and boost control. Ready to rock and roll with the awesome new Coyote, Modular or LS? We’ve got what you need with plug and play kits. It has never been easier to make your engine swap do exactly what you want. Just add an ECU and WB02 sensor to make these a complete EFI System.

Holley now offers complete plug and play harness kits for our most popular engine swaps!

Features:

  • Can be used with HP ECU or Dominator ECU
  • Plug and play kits
  • Available in various applications for various engines swap platforms
  • Harness kits include the following: Application specific main engine harness, Injector harness and ignition harness (where required) along with an ECU power harness. Ford Modular and Coyote kits also include coil drivers for OEM coils.