Holley EFI 558-500 Fuel Injection Wire Harness

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15.00 (in)
5.00 (in)
14.00 (in)

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Fuel Injection Wire Harness

Fuel Injection Wire Harness; For Use w/HP Or Dominator ECU; Works w/LS1/LS6 And 24 Tooth Crank Sensor;

  • Harness Application: LSX
  • WARNING CA Proposition 65: No

  • Simple Installation
  • For HP EFI/Dominator EFI Systems

An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit for your GM LS engine comes complete with the main harness, power harness and injector harness to support your primary system!

Holley is quickly becoming The New Standard In EFI! Holley's HP ECU is standard equipment on the 2013/2014 Chevrolet COPO Camaro and Holley's EFI throttle body powers every NASCAR Sprint Cup Series(TM) team. Top racers are making the switch to Holley EFI every day. Racers like Tom Bailey who set three new records and took the overall event win on the 2013 Hot Rod Magazine Drag Week and John Scali who used it to win the 2013 JEGS All Star race. But that's not all. The world's best street machine builders and tuners are making the switch to Holley EFI. Builders like Dave Lane who used Holley EFI to power the 2013 Goodguys Hot Rod of the Year and tuners like Steve Morris who use it to build some of the baddest forced induction beasts on the planet. It's the easiest, most refined, feature-rich system that money can buy. But, don't take our word for it, see what the best are saying about Holley EFI!

As always, 21 Motorsports offers FAST and FREE shipping on Holley EFI part number 558-500. Please look around to find more great items from Holley EFI and all the other great fuel inject. controls & parts and air intake & fuel delivery parts you love!
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Warranty Information

Full manufacturer's warranty
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Additional Information

GPS Enabled:
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