PR-X, also known as Performance Race Xtreme, is our top-performance tune for the 2017+ Ecoboost Trucks. This is by far the preferred tune on this truck due to the ridiculous power gains over stock. The truck feels so much lighter with the increased throttle response and part throttle boost. Wide open throttle boost is increased over stock by +/- 15% which equals out to around 3/5 psi, depending on the rpm. Peak boost is around 20psi +/-.
With this tune you are looking at huge increases in low end torque and acceleration, faster 0-60 times, quicker 1/4 mile results, shift points optimized with a focus on performance.
The shift points in normal mode will hit all 10 gears, with downshifts tightened up putting you in the right gear at the right time. This means power to the wheels when the driver demands it.
Sport Mode and Tow Haul mode retain most all of the positive features from Ford with minor tweaks to improve over all feel.
All driving modes drastically improve throttle response and feel, but click to Sport mode and this improvement is multiplied. Sport mode has a noticeable increase in throttle response above that of the already increased base mode. The PR-X tune is only available for premium fuels of 91 octane or better. We do not recommend 87 octane at all, but for those that tune the bare minimum allowed in the truck, you can use the Trans Only tune.