Holley EFI Engine Control Module - Input/Output Module 38500310 The ceramic

The ceramic

1955-1958 Pontiac Pathfinder

12 Point bolt head

If you are between sizes

Real carbon fiber gauge cup

Holley EFI Engine Control Module - Input/Output Module 38500310 The ceramicHP Dominator Requires V6 Software version Build 200 and higher. Terminator X requires V2 Software Build 51 and higher. 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 ECU's 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