The X4 Performance Programmer connects high-performance tunes to your vehicle for a boost in horsepower & torque.
those currently being manufactured) to work effectively with updated OEM calibrations. My CTS works great however I want to update to Edge's newest software for it as well as mess around with the MyStyle software to customize it. The release of this new Edge CTS update software allows the utmost control in managing your vehicle�s maintenance. Push on the cable to verify that it is fully connected if the EGTs do not appear on the display.