You can find the chip tuning file for your Cadillac XLR 2006 - 2009 4.4 Supercharged V8 443hp 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 Cadillac XLR 2006 - 2009 4.4 Supercharged V8 443hp vehicle is the result of a special product by EcuPrime Engineers. In addition, we can increase the power of your vehicle from 443 HP to 480 HP, 561 Torque to 600 Torque.