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Holley Water/Methanol Injection Driver Modules 554-115 System Controllers, Injection, Module, 2-channel, with Wire Harness, for HP EFI or Dominator EFI, Each

Holley Water/Methanol Injection Driver Modules 554-115 System Controllers, Injection, Module, 2-channel, with Wire Harness, for HP EFI or Dominator EFI, Each

A$247.00
LAST ONE! Est Ship 4-7 days. In stock at 2 locations (7 available)

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Description

High Current Peak and Hold Module - Solenoid Driver - 2 Channel - Holley EFI - Kit


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:15:41

Data: v4.2 - Upd: 2026-11-11 03:04:05

Features

Vehicle Compatibility and Return Conditions.

This item was designed and engineered in the USA for US domestic vehicles. OBD tools, ECUs, dongles, programmers, and tuners may have limited compatibility with vehicles outside the USA due to regional differences in emission standards and system configurations. Some features and functionality may vary depending on the vehicle and location.

Some electronic tuning devices and programmers require activation, registration, or pairing with a specific vehicle’s VIN (Vehicle Identification Number). Once activated or paired, these devices may become permanently associated with that vehicle, restricting or preventing their use on another vehicle, resticting our ability to offer returns or exchanges.

Please review the product details and images to ensure it meets your needs. For clarification or assistance, feel free to contact a StreetFX agent. Note: Returns are not accepted for special order or tuning products unless the unit is deemed faulty.

(keyword: efi)

Note on Vehicle Configuration

This listing includes the term "driver" or "passenger". Please note that this may refer to a region specific variation based on vehicle configuration (LHD/RHD) or regional preferences. Much of our database relates to US sourced products where "Driver" typically refers to the left-hand side in LHD vehicles, and "passenger" to the right. In RHD vehicles, this terminology is reversed. Review product details carefully for compatibility. Contact support if you have any questions. StreetFX may not accept returns for special order products.

(keyword: driver)

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Holley, Hilborn, Holley Efi, Retrobright, Terminator X
StreetFX SKU hly554-115
SFX Item ID 4782867
Accounting SKU hly-554-115
Manufacturer SKU 554-115
Manufacturer UPC N/A
Alternative References 554-115, HLY-554-115, HOL554-115

Injection System Controllers, Water/Methanol Injection, Driver Module, 2-channel, with Wire Harness, for HP EFI or Dominator EFI, Each

Holley water/methanol injection driver modules are designed to be used with HP EFI or a Dominator EFI ECUs. They will drive up to two water or methanol solenoids and are made out of high-quality materials to ensure long-lasting durability and performance. So, if you're in the market for a high-current water/methanol peak and hold module, Holley water/methanol injection driver modules are what you need.

Product Attributes
BrandHolley
Manufacturer's Part Number554-115
Part TypeWater/Methanol Injection System Controllers
Product LineHolley Water/Methanol Injection Driver Modules
UPC090127683507
QuantitySold individually.
NotesThis module is meant to be driven by a HP EFI or Dominator EFI ECU. The module will drive up to 2 water/methanol solenoids.

Compatibility

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