Holley Dominator EFI Vehicle Management Systems 550-657 Engine Systems, EFI, 24-EV1 Injectors, 12-Coils, Analog/Digital, Drive-by-wire, 1x Cam Sensor, Chevy, 5.7L, 6.0L, 24x Crank, Kit
Holley Dominator EFI Vehicle Management Systems 550-657 Engine Systems, EFI, 24-EV1 Injectors, 12-Coils, Analog/Digital, Drive-by-wire, 1x Cam Sensor, Chevy, 5.7L, 6.0L, 24x Crank, Kit
A$7,272.51
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Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:16:20
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 | hly550-657 |
| SFX Item ID | 4783442 |
| Accounting SKU | hly-550-657 |
| Manufacturer SKU | 550-657 |
| Manufacturer UPC | 090127137178 |
| Alternative References | 550-657, HLY-550-657, HOL550-657 |
Engine Management Systems, Dominator EFI, 24-EV1 Injectors, 12-Coils, Analog/Digital, Drive-by-wire, 1x Cam Sensor, Chevy, 5.7L, 6.0L, 24x Crank, Kit
Holley Dominator EFI vehicle management systems are intended for all engine applications, from street to high-end racing. They have nearly unlimited capabilities to control any power adder, input, or output that you can throw at them.
Features include:
• 12 sequentially driven 8:2 peak and hold injector drivers capable of driving up to 24 low or high-impedance injectors
• 12-channel distributorless ignition outputs capable of directly driving smart ignition coils or Holley DIS coils
• Plug-and-play control of factory GM 24x and 58x LSX engines
• Integrated electronic transmission control--currently can control GM 4L60E and 4L80E
• Integrated dual channel wideband oxygen sensor controls, work with NTK or Bosch sensors
• Integrated drive by wire throttle body control, can control two drive by wire throttle bodies
• 4-stage progressive nitrous oxide controller
• Turbo boost control
• Integrated water/methanol injection control
• Integrated data acquisition and control allowed with massive amount of programmable inputs and outputs
• Internal data logging standard with a huge 2 GB of memory
• Self-tuning fuel table strategy greatly simplifies tuning process
• Store and change between four calibrations
• Individual cylinder fuel and spark control allows you to unlock your engine's potential
| Product Attributes | |
|---|---|
| Brand | Holley |
| Manufacturer's Part Number | 550-657 |
| Part Type | Engine Management Systems |
| Product Line | Holley Dominator EFI Vehicle Management Systems |
| UPC | 090127137178 |
| Transmission Controller Included | Yes |
| Boost Control | Yes |
| Traction Control | Yes |
| High Impedence Injectors | Up to 24 |
| Low Impedence Injectors | Up to 24 |
| Fuel Injector Connector Style | Jetronic/Minitimer/EV1 |
| Coils | Up to 12 |
| Digital Inputs | 13 |
| Analog Inputs | 30 |
| VR/Mag Inputs | Up to 4 |
| Wideband Controller | Yes |
| Wideband Channels | 2 |
| CANBUS Enabled | Yes |
| CANBUS Networks | 1 |
| Knock Control | Yes |
| Knock Channels | 2 |
| Drive-By-Wire Capable | Yes |
| Drive-By-Wire Channels | 2 |
| VVT Control | No |
| Nitrous Control | Yes |
| Launch Control | No |
| Engine Protection | Yes |
| Flex Fuel Compatible | No |
| Multi-fuel Capable | No |
| Data Logger | Yes |
| Oxygen Sensor Included | No |
| Reluctor Wheel Tooth Quantity | 24 |
| Display Included | No |
| Handheld Controller Included | No |
| Remanufactured | No |
| Quantity | Sold as a kit. |
| Notes | Fit engines with 24x crank/1x cam sensors and with EV1 injectors and drive by wire throttle body |
Compatibility
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