Holley Terminator X MAX Engine Management Systems 550-1312 Systems, MAX, Up to 8-EV1 Injectors, 8-Coil, Plug-and-Play, Drive-by-Wire, Tuner/Trans Control, 4R70W, Ford, 5.0L, Kit
Holley Terminator X MAX Engine Management Systems 550-1312 Systems, MAX, Up to 8-EV1 Injectors, 8-Coil, Plug-and-Play, Drive-by-Wire, Tuner/Trans Control, 4R70W, Ford, 5.0L, Kit
A$7,049.64
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Description
Data: v2 - Desc: v4.2 - Upd: 2026-11-08 02:15:44
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 | hly550-1312 |
| SFX Item ID | 4782929 |
| Accounting SKU | hly-550-1312 |
| Manufacturer SKU | 550-1312 |
| Manufacturer UPC | 090127083352 |
| Alternative References | 550-1312, HLY-550-1312, HOL550-1312 |
Engine Management Systems, Terminator X MAX, Up to 8-EV1 Injectors, 8-Coil, Plug-and-Play, Drive-by-Wire, Tuner/Trans Control, 4R70W, Ford, 5.0L, Kit
Holley Terminator X MAX engine management systems let you take control of your domestic V8 engine. They give you complete charge of your engine and self-learning fuel strategies, along with the proven, race-winning technology of Holley EFI—all at a budget-friendly price! Every MPFI Terminator X MAX features real-time fuel learn, high-impedance injector drivers, an integrated one-bar MAP sensor—and four programmable inputs and outputs, ideal for electric fans, boost control solenoids, progressive nitrous control, and much more. Also, Holley offers the X MAX systems with either or both drive-by-wire (DBW) throttle body control or transmission control. All kits come fully loaded with base maps for common domestic V8 engine combinations to get you out of the garage and onto the road or track fast. Order the model recommended for your vehicle application.
Features include:
• Holley EFI industry-leading, easy-to-use software suite allows full laptop access for advanced users
• Real-time fuel map learn—takes the guesswork out of tuning your base fuel table
• High-impedance injector drivers will safely power most standard injectors and Holley EFI injectors (will not control low-impedance injectors)
• Bosch LSU 4.9 wideband relays AFR information to the ECU for accurate reading and precise tuning control
• On-board one-bar MAP sensor is perfect for N/A or nitrous engine combos
• MAP sensor vacuum hose adapters
• 4 inputs: 12 V, ground, 5 V, and frequency
• 4 outputs: Ground, PWM, and for accessories
• Boost control: boost vs. time, boost vs. gear, boost vs. rpm, boost vs. speed, and boost safeties
• Nitrous control: single channel of wet or dry, progressive or non-progressive, rich/lean safeties, and target closed loop AFR; adjustable through touch screen
• Advanced tables can be used for any custom tables
• On-board diagnostic LEDs allow you to identify any critical engine issues at a glance
• The compact ECU size allows you to mount it virtually anywhere. Remember, diagnostic LEDs must face up!
• Plug-and-play compatible with more Holley EFI accessories
• Available with or without a 3.5 in. touch screen LCD hand-held with easy-to-use calibration wizard; allows you to quickly build a base tune for most V8 engines, as well as tuning and gauge display functions
| Product Attributes | |
|---|---|
| Brand | Holley |
| Manufacturer's Part Number | 550-1312 |
| Part Type | Engine Management Systems |
| Product Line | Holley Terminator X MAX Engine Management Systems |
| UPC | 090127083352 |
| Transmission Controller Included | Yes |
| Boost Control | Yes |
| Traction Control | No |
| High Impedence Injectors | Up to 8 |
| Fuel Injector Connector Style | Jetronic/Minitimer/EV1 |
| Coils | Up to 8 |
| Ignition Coil Connector | Ford Coyote 3-pin |
| Analog Inputs | 4 |
| Wideband Controller | Yes |
| Wideband Channels | 1 |
| CANBUS Enabled | Yes |
| CANBUS Networks | 1 |
| Knock Control | Yes |
| Knock Channels | 2 |
| Drive-By-Wire Capable | Yes |
| Drive-By-Wire Channels | 1 |
| VVT Control | Yes |
| VVT Channels | 2 |
| Nitrous Control | Yes |
| Launch Control | No |
| Engine Protection | Yes |
| Flex Fuel Compatible | Yes |
| Multi-fuel Capable | No |
| Data Logger | Yes |
| Oxygen Sensor Included | Yes |
| Reluctor Wheel Tooth Quantity | 35 |
| Display Included | Yes |
| Handheld Controller Included | Yes |
| Remanufactured | No |
| Quantity | Sold as a kit. |
| Notes | Engines equipped with EV1 injectors and a 1998 and newer 4R70W transmission. Includes 3.5 inch display. Cannot program through EFI Standalone Digital Dash Kits. |
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