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Holley EFI

Universal MPFI Coil On Plug Main Harness

: In stock

: Ignition Harness

: Holley EFI

: 558-117

$599.95 $674.95

This harness provides a plug and play upgrade solution for those seeking to convert to Coil-On-Plug. Additionally we have pre-installed a Power...
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This harness provides a plug and play upgrade solution for those seeking to convert to Coil-On-Plug. Additionally we have pre-installed a Power Tap for easy access to 12v, 5v Reference, and Sensor Grounds.

Your order of 100$ or more gets free standard delivery.

  • Standard delivered 4-5 Business Days
  • Express delivered 2-4 Business Days

Orders are processed and delivered Monday-Friday (excluding public holidays)


eMarket members enjoy free returns.

Universal MPFI Coil On Plug Main Harness

$599.95 $674.95