Holley Drive-By-Wire Dual Throttle Body Harnesses 558-450 Fuel Injection System Components, EFI, Hemi, Body, Harness, for Dominator EFI, Chrysler, Dodge, Ram, 5.7-6.4L, Each
Holley Drive-By-Wire Dual Throttle Body Harnesses 558-450 Fuel Injection System Components, EFI, Hemi, Body, Harness, for Dominator EFI, Chrysler, Dodge, Ram, 5.7-6.4L, Each
A$915.31
IN STOCK! Est Ship 4-7 days.
In stock at 1 location
(4 available)
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Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:15:54
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.
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 | hly558-450 |
| SFX Item ID | 4783083 |
| Accounting SKU | hly-558-450 |
| Manufacturer SKU | 558-450 |
| Manufacturer UPC | 090127745687 |
| Alternative References | 558-450, HLY-558-450, HOL558-450 |
Fuel Injection System Components, Holley EFI, Hemi, Dual Throttle Body, Drive-By-Wire Harness, for Dominator EFI, Chrysler, Dodge, Ram, 5.7-6.4L, Each
Holley Drive-By-Wire (DBW) dual throttle body harnesses are for use with the Dominator EFI ECU, which has built-in capability to control OEM-type DBW throttle pedals and throttle bodies for aftermarket installation. These plug-and-play harnesses are available for the most popular engine swaps. Order the throttle body harness designed to fit your application.
Wiring harness features:
• Harnesses are available to connect to a late model HEMI engine for the most advanced fuel and timing controls available
• Each harness is designed in fit and function specifically for Gen III HEMI engine platforms
• All wiring is TXL-grade copper wiring with minimal weight; high-temp sleeve in a smaller diameter
• Factory-style terminations provide a strong, secure connection
• Connectors are OEM-grade for a correct, positive fit
• Each harness is routed through a split-loom braid for protection and great looks
| Product Attributes | |
|---|---|
| Brand | Holley |
| Manufacturer's Part Number | 558-450 |
| Part Type | Fuel Injection System Components |
| Product Line | Holley Drive-By-Wire Dual Throttle Body Harnesses |
| UPC | 090127745687 |
| Fuel Injection System Component Type | Wiring harness |
| Remanufactured | No |
| Quantity | Sold individually. |
| Notes | Designed for use with Holley Dominator ECU. Additionally, this harness requires pedal assembly, Holley part number 04861714. |
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