You can find the chip tuning file for your Subaru WRX 2015 - 2017 2.5 STi 300hp 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 Subaru WRX 2015 - 2017 2.5 STi 300hp vehicle is the result of a special product by EcuPrime Engineers. In addition, we can increase the power of your vehicle from 300 HP to 330 HP, 407 Torque to 467 Torque.