Holley EFI Universal Coil On/Near Plug Harness

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