Click here to learn more about this liquidation sale. Don't miss out!
-10% Main Harness Input/Output Upgrade, Terminator

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 laptop software. The software also contains instructions on how to program these.

Not Sure? Review this product documentation before you buy!

Installation Sheet
Holley Terminator EFI Input/Output Harness

Write a review

Note: HTML is not translated!
    Bad           Good

Main Harness Input/Output Upgrade, Terminator

  • Views: 11554
  • Brand: Holley EFI
  • Product Code: 558-420
  • Availability: In Stock
  • $45.50
  • $40.95