Precision in your performance has never been easier than with the BDX Performance Programmer. Access the latest preloaded tunes directly from the Cloud or download custom tunes from your SCT custom tuning dealer within minutes via WiFi. Monitor engine parameters in real-time and review vehicle performance later with SCT’s free LiveLink software.

The X4 Performance Programmer connects high-performance tunes to your vehicle for a boost in horsepower & torque. Awaken your engine to its real potential with preloaded, dyno-proven tune files through the easy-to-use functionality. Modify a variety of parameters at the touch of a button, all while monitoring gauges on a customizable display.