Holley 550-604 - HP EFI ECU & Harness Kits

Part #550-604

Holley 550-604 - HP EFI ECU & Harness Kits

Part #550-604
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Product Info

Holley Brand Banner - US

Holley 550-412 - HP EFI 4bbl Throttle Body Fuel Injection System

Holley HP EFI Engine Control Units allow you to control the fuel and ignition of your engine, along with additional controls for nitrous, boost, or water methanol.

Key Features:
  • HP EFI ECU And Harness Kit
  • Universal V8 Multi-Point Fuel Injection
  • Incl. ECU/Harness
  • Incl. Bosch Oxygen Sensor
Note: Automotive Stuff is an authorized dealer of all Holley products, so your new product will include the full factory warranty.

Holley Brand Banner - about

Holley was founded by the Holley brothers in the 1900s and they became industry leaders in fuel system technology. Over 250 000 000 carburetors have been manufactured over the years for everything from Henry Ford's original Model A to the baddest factory muscle cars. In 2003 the company was one of the four original suppliers still selling to Ford after 100 years.

Description

Key Features:
  • HP EFI ECU And Harness Kit
  • Universal V8 Multi-Point Fuel Injection
  • Incl. ECU/Harness
  • Incl. Bosch Oxygen Sensor

Vehicle Fitment

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