You can find the chip tuning file for your Pontiac Sunfire 1997 - 2005 2.4i 150hp 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 Pontiac Sunfire 1997 - 2005 2.4i 150hp vehicle is the result of a special product by EcuPrime Engineers. In addition, we can increase the power of your vehicle from 150 HP to 170 HP, 210 Torque to 230 Torque.