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Holley EFI

GM 58X EFI HARNESS KIT

GM LS2/LS3/LS7, 58X Crank Sensor, USCAR/ EV6 Injector

Part # 558-501 Be the first to write a review
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$633.95
Suggested Retail
$705.00
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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 comes complete with the main harness, power harness and injector harness to support your primary system!

Features:

  • Harness Kit Includes; Main Power Harness, LS2 Main Harness & LSX Injector harness
  • Simple Installation
  • Works with HP or Dominator ECU's

About Holley EFI

Holley is the new standard in EFI! Whether you're engine swapping your classic car or need to manage 4000 horsepower in your twin-turbocharged drag radial race car, Holley EFI has the solutions you need to get your project up and running better than ever!

Brand Holley EFI
Emission Code4
Harness ApplicationLSX
Product TypeHarness Kit
UPC090127721322
Part Number558-501
4

This part is legal for sale or use on Racing Use Only Vehicles

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

Holley EFI Dealers
Do you need a custom kit built for your application? Do you need a system installed and tuned? Click here to find the Holley EFI dealer in your area!
NOTICE: You will need to purchase an ECU and O2 Sensor to make this a complete kit.
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     X  Holleydays 2021
     X  Holleydays 2021