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Holley EFI
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Add to cartHOLLEY EFI HOLLEY LCD TOUCH SCREEN Wide range of tuning and data-monitoring options in a compact 3.5″ LCD display Part # 553-108
Original price was: $399.00.$358.95Current price is: $358.95. - Sale!
Add to cartHOLLEY EFI HOLLEY SMART COIL REMOTE COIL RELOCATION BRACKETS for Holley Smart Coils, Remote Relocation System – Black Finish Part # 561-131
Original price was: $206.00.$184.95Current price is: $184.95. - Sale!
Add to cartHOLLEY EFI HOLLEY SMART COIL REMOTE COIL RELOCATION BRACKETS for Holley Smart Coils, Remote Relocation System – Natural Finish Part # 561-125
Original price was: $176.00.$157.95Current price is: $157.95. - Sale!
Add to cartHOLLEY EFI HOLLEY STANDALONE DIGITAL DASH KIT 7″ Digital Dash, Compact & Fully Customizable! Part # 553-109
Original price was: $1,562.00.$1,404.95Current price is: $1,404.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Complete 99-04 2 Valve Ford Modular Engine Plug and Play Kit – Jetronic “Bosch Style” injector harness – Bosch Wideband O2 Part # 550-616
Original price was: $2,954.00.$2,657.95Current price is: $2,657.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Complete 99-04 2 Valve Ford Modular Engine Plug and Play Kit – Jetronic “Bosch Style” injector harness – Includes NTK Oxygen Sensor Part # 550-616N
Original price was: $3,270.00.$2,942.95Current price is: $2,942.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Complete 99-04 4 Valve Ford Modular Engine Plug and Play Kit – Jetronic “Bosch Style” injector harness – Bosch Wideband O2 Part # 550-617
Original price was: $2,954.00.$2,657.95Current price is: $2,657.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Complete 99-04 4 Valve Ford Modular Engine Plug and Play Kit – Jetronic “Bosch Style” injector harness – Includes NTK Oxygen Sensor Part # 550-617N
Original price was: $3,270.00.$2,942.95Current price is: $2,942.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes Bosch Oxygen Sensor Part # 550-602
Original price was: $2,899.00.$2,608.95Current price is: $2,608.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS1/LS6 (24x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes NTK Oxygen Sensor Part # 550-602N
Original price was: $3,146.00.$2,830.95Current price is: $2,830.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS2/3/7 (58x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes Bosch Oxygen Sensor Part # 550-607
Original price was: $2,899.00.$2,608.95Current price is: $2,608.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS2/3/7 (58x crank sensor) with Jetronic/Minitimer (Bosch type) connectors on injector harness (fits Holley 522-xxx injectors), Includes NTK Oxygen Sensor Part # 550-607N
Original price was: $3,146.00.$2,830.95Current price is: $2,830.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes Bosch Oxygen Sensor Part # 550-603
Original price was: $2,899.00.$2,608.95Current price is: $2,608.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM LS2/3/7 (58x crank sensor) with USCAR (EV6 Style) connectors on injector harness, Includes NTK Oxygen Sensor Part # 550-603N
Original price was: $3,146.00.$2,830.95Current price is: $2,830.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM TPI and Holley Stealth Ram™, Includes Bosch Oxygen Sensor Part # 550-601
Original price was: $2,803.00.$2,521.95Current price is: $2,521.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS GM TPI and Holley Stealth Ram™, Includes NTK Oxygen Sensor Part # 550-601N
Original price was: $3,042.00.$2,736.95Current price is: $2,736.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Universal FORD V8 Multi-Point Fuel Injection, Includes Bosch Oxygen Sensor, and Ford V8 Injector Harness. Part # 550-606
Original price was: $2,735.00.$2,460.95Current price is: $2,460.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Universal FORD V8 Multi-Point Fuel Injection, Includes NTK Oxygen Sensor, and Ford V8 Injector Harness. Part # 550-606N
Original price was: $2,985.00.$2,685.95Current price is: $2,685.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Universal V8 Multi-Point Fuel Injection, Includes Bosch Oxygen Sensor Part # 550-604
Original price was: $2,803.00.$2,521.95Current price is: $2,521.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Universal V8 Multi-Point Fuel Injection, Includes NTK Oxygen Sensor Part # 550-604N
Original price was: $3,042.00.$2,736.95Current price is: $2,736.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Unterminated Universal Harness, Includes Bosch Oxygen Sensor Part # 550-605
Original price was: $2,803.00.$2,521.95Current price is: $2,521.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU & HARNESS KITS Unterminated Universal Harness, Includes NTK Oxygen Sensor Part # 550-605N
Original price was: $3,042.00.$2,736.95Current price is: $2,736.95. - Sale!
Add to cartHOLLEY EFI HP EFI ECU HP EFI ECU, USB Cable, and Software Part # 554-113
Original price was: $1,878.00.$1,689.95Current price is: $1,689.95. - Sale!
Add to cartHOLLEY EFI HP SMART COIL IGNITION HARNESS For use with Holley® HP and Dominator ECUs and other EFI systems Part # 558-312
Original price was: $228.00.$204.95Current price is: $204.95. - Sale!
Add to cartHOLLEY EFI INJECTOR DRIVER HARNESS Part # 558-219
Original price was: $286.00.$256.95Current price is: $256.95. - Sale!
Add to cartHOLLEY EFI INJECTOR HARNESS – EARLY TRUCK LS MULTEC 2 INJECTOR HARNESS – EARLY TRUCK Part # 558-214
Original price was: $252.00.$225.95Current price is: $225.95. - Sale!
Add to cartHOLLEY EFI LS COIL EXTENSION HARNESSES Designed to extend your factory coil harness, allowing you to easily remote mount your LS ignition coils. Part # 558-326
Original price was: $110.00.$98.35Current price is: $98.35. - Sale!
Add to cartHOLLEY EFI LS COIL HARNESSES Factory replacement coil harness for stock LS coils, does not fit LS1 or LS6 Coils. Part # 558-321
Original price was: $195.00.$174.95Current price is: $174.95. - Sale!
Add to cartHOLLEY EFI LS1/6 (24X/1X) ENGINE MAIN HARNESS LS1/6 Main Harness for HP EFI & Dominator EFI Part # 558-102
Original price was: $627.00.$563.95Current price is: $563.95. - Sale!
Add to cartHOLLEY EFI LS1/6 (24X/1X) ENGINE MAIN HARNESS, EXTENDED LENGTH LS1/6 Main Harness for HP EFI & Dominator EFI Part # 558-133
Original price was: $582.00.$522.95Current price is: $522.95. - Sale!
Add to cartHOLLEY EFI LS2/3/7+ (58X/4X) ENGINE MAIN HARNESS EXTENDED LENGTH LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI Part # 558-134
Original price was: $582.00.$522.95Current price is: $522.95. - Sale!
Add to cartHOLLEY EFI LS2/3/7+ (58X/4X) ENGINE MAIN HARNESS LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI Part # 558-103
Original price was: $627.00.$563.95Current price is: $563.95. - Sale!
Add to cartHOLLEY EFI LSX INJECTOR HARNESS – FOR EV6 STYLE INJECTORS LSx Injector Harness for HP EFI, Dominator EFI and Terminator X. Part # 558-201
Original price was: $172.00.$153.95Current price is: $153.95. - Sale!
Add to cartHOLLEY EFI MAIN ENGINE HARNESS FOR 24X LS W/TBI Main Harness for us with 24x/1x Gen 3 LS with Terminator Throttle Body Fuel Injection Part # 558-111
Original price was: $605.00.$543.95Current price is: $543.95. - Sale!
Add to cartHOLLEY EFI MAIN ENGINE HARNESS FOR 58X LS W/TBI Main Harness for us with 58x/4x Gen 4 LS with Terminator Throttle Body Fuel Injection Part # 558-112
Original price was: $616.00.$553.95Current price is: $553.95. - Sale!
Add to cartHOLLEY EFI MAIN POWER HARNESS Main Power Harness for Avenger EFI, HP EFI, & Dominator EFI Part # 558-308
Original price was: $97.89.$88.10Current price is: $88.10. - Sale!
Add to cartHOLLEY EFI METRIPACK CRIMPING TOOL-150/280 20-14AWG Ratcheting crimper tool for Metri-pack 20-14AWG Terminals. Part # 567-102
Original price was: $206.00.$184.95Current price is: $184.95. - Sale!
Add to cartHOLLEY EFI SEALED USB DATA CABLE Holley EFI Sealed USB Cable 15′ Part # 558-438
Original price was: $115.00.$102.95Current price is: $102.95. - Sale!
Add to cartHOLLEY EFI TERMINATOR 1 BAR MAP SENSOR Terminator 1 bar MAP sensor Part # 554-120
Original price was: $97.89.$88.10Current price is: $88.10. - Sale!
Add to cartHOLLEY EFI TERMINATOR EFI ECU Replacement Terminator EFI ECU Part # 554-119
Original price was: $1,954.00.$1,757.95Current price is: $1,757.95. - Sale!
Add to cartHOLLEY EFI TERMINATOR FUEL INJECTOR 80 LB/HR – INDIVIDUAL Terminator 80PPH injector (single) Part # 522-801
Original price was: $137.00.$122.95Current price is: $122.95. - Sale!
Add to cartHOLLEY EFI TERMINATOR LS MPFI KIT 1997-2007 4.8/5.3/6.0 Truck Engines with 24x crank reluctor – with DRIVE-BY-WIRE, No Laptop Required, 3.5″ Touchscreen Included Part # 550-615
Original price was: $4,450.00.$4,004.95Current price is: $4,004.95. - Sale!
Add to cartHOLLEY EFI TERMINATOR LS MPFI KIT 1997-2007 4.8/5.3/6.0 Truck Engines with 24x crank reluctor, No Laptop Required, 3.5″ Touchscreen Included Part # 550-614
Original price was: $3,028.00.$2,724.95Current price is: $2,724.95. - Sale!
Add to cartHOLLEY EFI TERMINATOR LS MPFI KIT GM LS2/LS3 Engines and 2007 to current 4.8/5.3/6.0 Truck Engines with 58x crank reluctor – with DRIVE-BY-WIRE & TRANSMISSION CONTROL, No Laptop Required, 3.5″ Touchscreen Included Part # 550-613
Original price was: $4,797.00.$4,316.95Current price is: $4,316.95. - Sale!
Add to cartHOLLEY EFI TERMINATOR MAIN HARNESS Replacement main wiring harness for Terminator EFI kits 550-405 and 550-406 Part # 558-414
Original price was: $434.00.$389.95Current price is: $389.95. - Sale!
Add to cartHOLLEY EFI TERMINATOR STEALTH 2X4 MAIN HARNESS Part # 558-121
Original price was: $434.00.$389.95Current price is: $389.95. - Sale!
Add to cartHOLLEY EFI TERMINATOR STEALTH 2X4 PRIMARY THROTTLE BODY SUB HARNESS Part # 558-459
Original price was: $212.00.$189.95Current price is: $189.95. - Sale!
Add to cartHOLLEY EFI TERMINATOR STEALTH 2X4 SLAVE THROTTLE BODY – CLASSIC GOLD Part # 534-242
Original price was: $1,178.00.$1,059.95Current price is: $1,059.95. - Sale!
Add to cartHOLLEY EFI TERMINATOR STEALTH 2X4 SLAVE THROTTLE BODY – HARD CORE GRAY Part # 534-241
Original price was: $1,178.00.$1,059.95Current price is: $1,059.95. - Sale!
Add to cartHOLLEY EFI TERMINATOR STEALTH 2X4 SLAVE THROTTLE BODY – POLISHED Part # 534-240
Original price was: $1,139.00.$717.47Current price is: $717.47.
