Description
Holley EFI Terminator X – Foxbody Mustang 5.0 EFI Kit
The Holley EFI Terminator X – Foxbody Mustang 5.0 EFI Kit is a plug-and-play engine management system designed specifically for 1987-1993 Fox Body Mustangs with the factory 302ci Small Block Ford and TFI distributor. It replaces the factory ECU and provides full user-tuneable control with advanced self-learning fuel strategies, boost and nitrous control, and integrated wideband AFR monitoring for improved performance and tuning flexibility.
Key Features
- Plug and Play with stock TFI distributor and factory 302ci Small Block Ford engines
- Includes ECU mounting bracket, TFI ignition adapter, engine main harness, MAT and CTS sensors
- Built-in 1 Bar MAP sensor with vacuum adapters; supports external MAP sensor for boosted setups
- Supports boost control, progressive wet/dry nitrous control, and advanced fuel and ignition tuning
- High impedance injector drivers compatible with stock and Holley EFI injectors
- Integrated Bosch LSU 4.9 wideband sensor for accurate AFR feedback and closed-loop tuning
- 3.5″ LCD handheld touch screen with calibration wizard and internal data logging included
- Supports E85 fuel, knock retard, CAN-BUS, coil-per-cylinder ignition, and individual cylinder fuel corrections
Fitment
- 1987-1993 Ford Mustang Fox Body with 302ci Small Block Ford engine and stock TFI distributor
Note: Verify vehicle compatibility before ordering. Tuning software and handheld device included; professional tuning recommended for boosted or nitrous applications. Fuel injectors, fuel pump, and other supporting hardware are not included.





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