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Holley EFI

Holley EFI Benchtop Harness

Firmware Updating - Dash Configuration - ECU Testing

Part # 558-127

Holley EFI Benchtop Harness

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MSRP $239.95
$191.66
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Designed for benchtop testing and setup of HP, Dominator, Terminator X, Terminator X Max, and Sniper ECU's, as well as 7" dashes. Great for ECU diagnostics, firmware updating, or pre-configuring dash layouts without being in the vehicle. Harness has pre-terminated connectors for the following sensor inputs: CAN, Crank, Cam, TPS, Input #1, P1A, Main Power, and Sniper EFI connectors for a Sniper main harness. Also includes a power switch for quick setup in your workspace. Power and Ground flying leads need to be connected to your battery or power supply. (Not included)

Features:

  • Terminated connectors for several EFI inputs
  • Included power switch allows for a quick “install” on your test bench
  • Great for ECU diagnostics that do not require a running engine, firmware updates, or 7” dash calibrations

About Holley EFI

Find standalone EFI for LS, Coyote, Hemi and more at Holley.com. From engine swapping to managing up to 4000 horsepower, we have a solution for every project!

Brand Holley EFI
CategoryIgnition
Emission Code6
Part TypeIgnition Harness
Product TypeHarness
Sub CategoryIgnition Wire and Related Components
UPC090127136768
Part Number558-127

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Some parts are not legal for use in California or other states with similar regulations.