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Holley EFI LS Spark Plug Wire Set - Cut to Fit

Spark Plug - Cut to Fit- Wire set, Red with Gray 135 degree boots designed for GM LS Engines (For OE Coil)

Spark Plug Boot Angle

PART# 561-112

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Holley EFI Universal "Cut-to-Fit" spark plug wire sets for GM Ls Engines come with the spark plug terminal and boot installed with the Coil end unterminated. Coil cap boots and terminals are included so you can cut the wire to the desired length, then install the terminal.


  • 8mm Plug Wire Size
  • Offers low 350 Ohms per foot resistance while maintaining very high noise suppression
  • Available in three colors (Red ,Black, and Grey)
  • 36" long unterminated wires to allow for custom routing
  • Locking dual crimp style terminals to ensure positive engagement when installing plug wire ends
  • Available with 135 or 180 degree spark plug boot angle


ApplicationGM LS
Boot MaterialSilicone
BrandHolley EFI
ColorRed/Gray Boots
Emission Code5
Ohm Resistance/Foot350
Product TypeSpark Plug Wire Set
ResistanceMeets or Exceeds OE
Spark Plug Boot Angle135 Degree
Wire Diameter8.2mm
Wire SeriesHolley EFI Spark Plug Wires
Part Number561-112



This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

In The Box

In The Box

  • (8) 36" long 8.2mm Spark plug leads
  • (8) Coil Connector Boots
  • (8) crimp connectors
  • (8) Coil-end isolators

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