Previous Power:
You can find the chip tuning file for your GMC Sierra 2017 -> 5.3 V8 355hp 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 GMC Sierra 2017 -> 5.3 V8 355hp vehicle is the result of a special product by Hyperols Engineers. In addition, we can increase the power of your vehicle from 355 HP to 375 HP, 519 Torque to 540 Torque.