The SCT X4 Performance Programmer is primarily designed for Ford, Lincoln, and Mercury vehicles equipped with gasoline engines. This includes many popular models from approximately 1996 up to the present, though compatibility is most extensive for cars, trucks, and SUVs from the late 1990s through the 2020 model year. The key is the vehicle's engine control unit (ECU); if it's a supported Ford-designed system, the X4 can likely interface with it to modify engine parameters.
Before purchasing, the most critical step is to verify your specific vehicle's compatibility directly on the official SCT website using your VIN (Vehicle Identification Number). This is the only way to be 100% certain, as there can be variations even within the same model year.
The SCT X4 is renowned for unlocking significant power and torque gains, especially on turbocharged EcoBoost engines and V8s like the 5.0L Coyote. It can also adjust for larger tires, improve shift firmness on automatic transmissions, and read/clear diagnostic trouble codes. For many Ford owners, it's the first and most effective mod for a noticeable performance boost.
| Supported Vehicle Type | Example Models (Various Years) | Key Supported Engines |
|---|
| Ford Mustang | Mustang GT, EcoBoost, V6 | 5.0L Coyote, 2.3L EcoBoost, 3.7L V6 |
| Ford F-Series Trucks | F-150, F-250, F-350 | 5.0L Coyote, 3.5L EcoBoost, 6.2L V8, 7.3L Godzilla |
| Ford Performance Cars | Focus ST/RS, Fiesta ST, Shelby GT350/GT500 | 2.0L EcoBoost, 2.3L EcoBoost, 5.2L Voodoo/Predator |
| Ford SUVs | Explorer, Escape, Edge, Expedition | 3.5L EcoBoost, 2.0L EcoBoost, 3.0L EcoBoost |
| Lincoln Models | MKZ, MKT, Navigator | 3.0L EcoBoost, 3.5L EcoBoost, 3.7L V6 |
| Mercury Models | Marauder, Grand Marquis, Mountaineer | 4.6L V8, 4.0L V6 |
