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Vehicle Info NeededHOLLEYPART NUMBER: 510-554-111
Nitrous Controller Module for Holley EFI Systems
$14595
1 left in stock
Ships on Nov 02, 2026
Lowest Price GuaranteeMisc. Wiring Harnesses
Nitrous Controller ModuleHolley EFI Systems Manages Nitrous Activation and Progression Wet or Dry Nitrous Control
This nitrous controller module manages nitrous activation and progression on Holley EFI systems for wet or dry nitrous setups.
Holley 554-111 Highlights:
- Works with Holley EFI systems.
- Manages nitrous activation and progression.
- Supports wet or dry nitrous control.
Complete All Your Holley EFI Wiring Needs
Holley EFI wiring harnesses are compatible with Holley's Avenger, HP, Terminator, and Dominator EFI Systems. EFI harnesses for various Holley systems can consist of the main harness, transmission harness (if applicable), injector harness, ignition/coil harness, throttle body harness, and auxiliary harnesses to access features of your Holley EFI system.
Part TypeNitrous Controller
Product LineHolley Avenger, HP, Terminator and Dominator EFI Wiring Harnesses
BrandHOLLEY
Package Height2.3
Package Width3.4
Package Length7.8
Weight0.65 PG
Part CategoryPerformance Parts
QuantitySold individually
Engine Management System Component TypeSolenoid driver
Part FitmentUniversal
Vendor Part Number554-111
Package Qty1
Package TypeEA
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Some parts are not legal for use in California or other states with similar laws / regulations
