Sniper EFI Input/Output Harness

Input/Output Harness for Sniper EFI Systems

PART# 558-491

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$46.36   Suggested Retail
$37.55   Holleydays Price
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This harness gives you the access to 2 Ground Trigger Inputs, 3 Ground Trigger Outputs, also the Points Output, Tachometer output, and Digital Gauge Output Wires. The Input Grounds can be used for things such as AC Kick, and nitrous stage activation! The Output Grounds can be used for Electronic Fan Control, or A/C Shutdown at WOT.


  • Wires come individually labeled for easy identification
  • 2x 3’ Log Inputs Wires
  • 1x 3’ Long Output Wire
  • 2x 5’ Long Output Wires
  • 1x 5’ Tachometer output
  • 1x 3’ Points Output Wire
  • 1x 5’ Long Digital Gauge Output (For Holley EFI Analog Gauges)


BrandHolley Sniper EFI
Product TypeInput/Output Harness
Part Number558-491


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