Once your tuner arrives, you'll need to use the device to look up your truck's ECU Strategy Code by hooking the tuner into your F150's OBD-II port and navigating to the "Vehicle Info" screen. We'll also need your truck's tire size and axle ratio/axle code. Once you have all that information, use our Online Custom Tune Form to submit your information. We'll make sure your strategy is up to date, and then 5-Star will get your tunes created.