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Holley EFI Engine Control Module - Input/Output Module
Holley EFI Engine Control Module - Input/Output Module
Holley EFI Engine Control Module - Input/Output Module
Holley EFI Engine Control Module - Input/Output Module
Holley EFI Engine Control Module - Input/Output Module
Holley EFI Engine Control Module - Input/Output Module
Holley EFI Engine Control Module - Input/Output Module
Holley EFI Engine Control Module - Input/Output Module
Holley EFI Engine Control Module - Input/Output Module
Holley EFI Engine Control Module - Input/Output Module
Holley EFI

Holley EFI Engine Control Module - Input/Output Module

In stock
SKU: HLY554-165
Engine Control Module, Holley EFI, Wiring Harness, Input / Output Module, Universal, Kit
$443.51
Sale $543.95 $443.51
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PROP 65: These products may contain a chemical known to the state of California to cause cancer and birth defects or other reproductive harm

HP/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 existing Holley EFI installation.
  • Pre-Terminated flying leads makes installing new wires a breeze.
  • Inputs can be used for things such as:
  • -Switch 12v Toggle Switches - can be configured for external mechanical relays, or setup as digital switches via a Holley EFI dash
  • -5v analog inputs for sensors like fuel pressure, oil pressure, or nitrous bottle pressure
  • Outputs can be used for things such as:
  • Adjustable broadcast rate for each channel - from 0-100hz.

    • Product Description:

  • Engine Control Module
  • Holley EFI
  • Wiring Harness
  • Input / Output Module
  • Universal
  • Kit
    • Holley is quickly becoming The New Standard In EFI! Holley’s HP ECU is standard equipment on the 2013/2014 Chevrolet COPO Camaro and Holley’s EFI throttle body powers every NASCAR Sprint Cup Series™ team. Top racers are making the switch to Holley EFI every day. Racers like Tom Bailey who set three new records and took the overall event win on the 2013 Hot Rod Magazine Drag Week and John Scali who used it to win the 2013 JEGS All-Star race. But that’s not all. The world’s best hot rod builders and tuners are making the switch to Holley EFI. Builders like Dave Lane who used Holley EFI to power the 2013 Goodguys Hot Rod of the Year and tuners like Steve Morris who use it to build some of the baddest forced induction beasts on the planet. It’s the easiest, most refined, feature-rich system that money can buy. But, don’t take our word for it, see what the best are saying about Holley EFI!