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Holley EFI

Holley 2-Channel Peak and Hold Water/Methanol Injection Driver Module

Part # 554-115 Be the first to write a review

High Current Peak and Hold

Holley 2-Channel Peak and Hold Water/Methanol Injection Driver Module

In Stock
Free Shipping on orders over $149*
Advertised Price $159.95
$87.95
Save $72.00
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3

Emissions

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.

See Emissions Details
High Current Water Methanol Solenoid Driver

Features:

  • 2-Channel
  • Peak and Hold
  • Water/Methanol Injection
  • Includes all necessary electrical connectors

About Holley EFI

Find standalone EFI for LS, Coyote, Hemi and more at Holley.com. From engine swapping to managing up to 4000 horsepower, we have a solution for every project!

Brand Holley EFI
CategoryAir and Fuel Delivery
Emission Code3
Grade TypePerformance
Housing MaterialComposite
Product TypeWater Methanol part
UPC090127683507
Part Number554-115
3

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles.


The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle


WARNING: It is against the law to install this part on an Emissions Controlled Vehicle


The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle
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Holley EFI Support Forums
Instructions - 199r10537.pdf
Holley Water/Methanol injection solenoids (Holley P/N’s 557-103, 557-105, and 557-106) are required to be driven by an injector driver output. If an extra is not available on your Dominator or HP ECU, this module can be used and driven by one of the Pulse Width Modulated outputs (either “PWM+” or “PWM-“). This module can be used to drive two solenoids, one on each output channel. The grey wire is used to determine if the trigger is a ground PWM output or a +12V PWM output (see wiring below).
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    *Free Shipping and Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

    Some parts are not legal for use in California or other states with similar regulations.

    Holley 2-Channel Peak and Hold Water/Methanol Injection Driver Module
    Holley 2-Channel Peak and Hold Water/Methanol Injection Driver Module
    Advertised Price $159.95
    $87.95
    Save $72.00