You can find the chip tuning file for your Mercedes-Benz CLS C257 - 2018 -> 450 (3.0T) 389hp 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 CLS C257 - 2018 -> 450 (3.0T) 389hp vehicle is the result of a special product by Hyperols Engineers. In addition, we can increase the power of your vehicle from 389 HP to 420 HP, 500 Torque to 600 Torque.