Home » Holley EFI - For use with Holley® HP and Dominator ECUs and other EFI systems
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HLY558-307.jpg
558-307_01_P04_KIT.jpg
558-307_02_P01_ANG.jpg
558-307_03_P01_ANG.jpg
558-307_04_P01_ANG.jpg
558-307_05_P05_CON.jpg

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SKU: GVMR_558-307 UPC: 00090127686829
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Holley EFI - For use with Holley® HP and Dominator ECUs and other EFI systems

Holley EFI
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$192.54
$192.54 $211.95

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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