Your X3 could have power, torque and response to match its sporty driving dynamics with an AutoUpgrades performance tune.
Simply select your X3 from the drop-down box to find out how much power and torque can be gained on a stock vehicle.
If you have a ZF Automatic transmission in your X3 we are able to tune it so that gear changes become smooth and super-fast in order that a lot less power is lost through the shift, this not only improves acceleration but also minimizes the bobbing and destabilization of the vehicle through the shift.