Holley EFI

Holley EFI 558-420 Terminator EFI Input/Output Kit

This kit contains 4 extra input wires and 1 extra output wire that the base Terminator EFI harness does not contain.

Part # 558-420 Be the first to write a review
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$33.80
Suggested Retail
$37.56
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5

Emissions

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.

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PN 558-420 contains 5 extra input/output wires that the base Terminator EFI harness does not contain. It contains Input wires for Inputs 1-4. It contains one wire for Output 2. These inputs and outputs can perform features and functions that must be programmed via Holley EFI laptop software. The software also contains instructions on how to program these.
Brand Holley EFI
Emission Code5
Product TypeTerminator EFI Input/Output Kits
UPC090127688519
Manufacturer Part Number558-420
Part Number558-420
5

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.
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