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  • Holley EFI 558-307 For use with Holley® HP and Dominator ECUs and other EFI systems
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Holley EFI 558-307 For use with Holley® HP and Dominator ECUs and other EFI systems

Holley EFI
GVMR_558-307
558-307
Ships from Manufacturer
Ignition Harness
$280.94
Universal Coil On/Near Plug Harness – Use to connect Holley PN 558-312 or factory GM LSx...
⚠️ SPECIAL ORDER — Additional shipping fees may be required.
EMAIL US the PART NUMBER and your POSTAL CODE for a quote.
Holley EFI 558-307 For use with Holley® HP and Dominator ECUs and other EFI systems
Description
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
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