Holley 554-165 EFI Can Input Output Module Kit

This module is perfect for anyone wanting their Holley EFI ECU to control more functions or monitor more data channels HP and Terminator X EFI installations with only 4 inputs and 4 outputs can now add more functionality to their EFI system! Quickly expand Dominator ECUs Input / Output control with 8 additional inputs and outputs The 554-165 kits contain a pre-terminated CAN Harness allowing you to quickly install the Holley EFI CAN Module to any existing Holley EFI installation. Pre-Terminated flying leads makes installing new wires a breeze.