
Auxiliary Wiring Harness for Holley Dominator EFI
This auxiliary harness adds input and output connections to a Holley Dominator EFI system as a direct replacement harness.
Holley 558-406 Highlights:
- Works with Holley Dominator EFI systems.
- Adds input and output connections.
- Direct replacement harness.
Take your EFI System to the next level with the Dominator ECU
Holley Dominator EFI Vehicle Management Systems are engine management systems that can regulate any engine combination, from street to high-end unlimited racing. This system will control almost any input, output, or power adder you can think of, as well as function as a standalone data acquisition/control module. So, stop driving with multiple controllers and upgrade to Dominator ECU, providing your ride with complete engine management in a single unit.