Holley EFI Benchtop Harness 558-127
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Features:
- Terminated connectors for several EFI inputs
- Included power switch allows for a quick ÒinstallÓ on your test bench
- Great for ECU diagnostics that do not require a running engine, firmware updates, or 7Ó dash calibrations
- Included power switch
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!
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