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Holley EFI 558-307 Universal Coil On/Near Plug Harness

Holley EFI 558-307 Universal Coil On/Near Plug Harness

Holley EFI

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

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

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