You can find the chip tuning file for your Audi A8 D3 - 2003 - 2010 4.2i 335hp 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 Audi A8 D3 - 2003 - 2010 4.2i 335hp vehicle is the result of a special product by EcuPrime Engineers. In addition, we can increase the power of your vehicle from 335 HP to 355 HP, 430 Torque to 450 Torque.