You can find the chip tuning file for your BMW X3 E83 - 2004 - 2010 3.5D 286hp vehicle on our site. These files are created especially for you and handed to you. All our Tuning files are extensively tested on Dynometer. The development of the tuning file for your BMW X3 E83 - 2004 - 2010 3.5D 286hp vehicle is the result of a special product by EcuPrime Engineers. In addition, we can increase the power of your vehicle from 286 HP to 332 HP, 580 Torque to 685 Torque.