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Universal Coil On/Near Plug Harness

For use with Holley® HP and Dominator ECUs and other EFI systems

PART# 558-307

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Overview

Universal Coil On/Near Plug Harness – Use to connect Holley PN 558-312 or factory GM LSx coil harnesses to Holley HP or Dominator ECU's

Features:

  • For use with Holley HP or Dominator ECUs
  • Universal
  • Connects 558-312 or factory GM LSx coil harnesses

Specs

BrandHolley EFI
Emission Code3
Harness ApplicationUniversal
Harness TypeIgnition
Product TypeDistrutorless Ignition - DIS - smart coil
Part Number558-307

Emissions

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and 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

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

Tech Resources

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        Some parts are not legal for use in California or other states with similar regulations.