With our Chip X2 for BMW, you can be confident that you have the best BMW performance chip on the market today. Designed by the the top engineers for performance chips in Germany, it has been proven to be the best solution for your BMW. The unique sliding adjuster on the X2 chip allows the parameters of the chip to be altered to enhance power, enhance efficiency, or give a combination of the two. Being a simple two wire installation, most applications will have this unit installed in under thirty minutes. This chip causes absolutely no harm to any of the components in the engine or the vehicle. It will simply have you saying that this is the way BMW should have programmed its cars from the factory.