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Description
Holley EFI CAN Input/Output Module Kit 554-165Adds Up To Eight Inputs and Outputs Features: This module is perfect for anyone wanting their Holley EFI ECU to control more functions or monitor more data channels1 HP and Terminator X EFI installations with only 4 inputs and 4 outputs can now add more functionality to their EFI system! 2 Quickly expand Dominator ECU? s Input Output control with 8 additional inputs and outputs3 The 554 165 kits contain a pre terminated CAN Harness, allowing you to
Adds Up To Eight Inputs and Outputs
Features:
- This module is perfect for anyone wanting their Holley EFI ECU to control more functions or monitor more data channels1
- HP and Terminator X EFI installations with only 4 inputs and 4 outputs can now add more functionality to their EFI system!2
- Quickly expand Dominator ECU?s Input / Output control with 8 additional inputs and outputs3
- 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.4
- Pre-Terminated flying leads makes installing new wires a breeze.5
- Inputs can be used for things such as:6
- -Switch 12v Toggle Switches - can be configured for external mechanical relays, or setup as digital switches via a Holley EFI dash7
- - Ground input for brake pedal switch8
- -5v analog inputs for sensors like fuel pressure, oil pressure, or nitrous bottle pressure9
- -Thermistor inputs for Coolant temperature sensors10
- Outputs can be used for things such as:11
- -Switch Low (Ground) ? For relay control or activation12
- -Switch Low PWM (Ground) ? -Switch Low PWM (Ground) ? PWM Fan control ? PWM Fuel Pump control - or other PWM- controlled devices.13
- Adjustable broadcast rate for each channel - from 0-100hz.14
Specs:
| Brand | Holley EFI |
|---|---|
| Emission Code | 5 |
| Product Type | CAN Input Output Module |
| Sale Category | Air and Fuel Delivery |
| Warning | California Proposition 65 |
Application:
| Year | Make | Model | Submodel |
|---|---|---|---|
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Good shoe!
Size: 12, Color: Black
Comfortable shoes for someone with wider feet and challenges finding comfortable dress loafers! Good price for the quality and comfort! Have two pairs
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Reviewed in the United States on December 29, 2025
★★★★★ 5
Comfort and Appearance
Size: 9, Color: Black
The shoes were as advertised. Marc Joseph (I hav 4 other pairs) are the perfect shoes for me with my physical needs. Additionally they are exceptionally comfortable and attractive. This pair I returned because they weren’t quite the right fit for me. They are, like my other Marc Joseph shoes, very well made and very attractive.
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Reviewed in the United States on February 19, 2026
★★★★★ 5
Premium feel
Size: 10, Color: Black
Very comfortable to wear.
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Reviewed in the United States on April 20, 2026
★★★★★ 4
Ok in a pinch. Can get better shoes for the price. Wide aren’t wide
Size: 9 Wide, Color: Black/Black
These were ok comfortable. Would have preferred at the price point to be a little more comfortable. For being a wide size, the shoe was rather tight on my feet. Quality is ok. It passed for the wedding. Would probably have taken more time to pick something different if I had the ability to. This was a last minute purchase.
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Reviewed in the United States on December 11, 2025
★★★★★ 5
A must have in your shoe collection.
Size: 13, Color: Black
Very comfortable, very stylish, and in my price range gives me exactly what I was looking for in a shoe. Definitely a quality shoe. I’m 6’4, 309 lbs and size 13 shoe.
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Reviewed in the United States on July 24, 2025