You can find the chip tuning file for your Infiniti FX 2008-2013 5.0 V8 390hp 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 Infiniti FX 2008-2013 5.0 V8 390hp vehicle is the result of a special product by EcuPrime Engineers. In addition, we can increase the power of your vehicle from 390 HP to 417 HP, 500 Torque to 532 Torque.