You can find the chip tuning file for your Mercedes-Benz GL X166 - 2012 -> 450 367hp 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 Mercedes-Benz GL X166 - 2012 -> 450 367hp vehicle is the result of a special product by EcuPrime Engineers. In addition, we can increase the power of your vehicle from 367 HP to 510 HP, 500 Torque to 820 Torque.