You can find the chip tuning file for your BMW 3 serie E90/E91 - 2010 - 2011 325i - N53 - 211hp 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 3 serie E90/E91 - 2010 - 2011 325i - N53 - 211hp vehicle is the result of a special product by EcuPrime Engineers. In addition, we can increase the power of your vehicle from 211 HP to 265 HP, 270 Torque to 315 Torque.