A lot of remap companies claim to be able to increase the power of the BMW X1 2.0d engine from 147/163bhp standard all the way to 220bhp and if you want extra performance and torque then it's certainly an option. However, do remember that manufacturers tend to optimise the power and torque of their engines to ensure reliability and efficiency as much as performance. A remap can put extra strain on the transmission, suspension, brakes and steering and can cause additional wear, as well as generally give worse fuel economy. If your car is still under warranty - be it manufacturer cover or independent - this could also be affected by a remap.