What's the fun in owning a truck if you don't make it your very own, right? Many drivers who upgrade their wheels and tires do not know they can correct their speedometer and vehicle computer for different sized tires.Superchips Flashcal F5 calibration tool allows you to make these corrections. It is exactly what you need to ensure that your truck or SUV is running at peak performance after it's lifted, sitting on bigger tires, and turning a beefed up axle. Flashcal F5 offers a ton of optimization, so no matter how you customize your truck or SUV, you'll be able to dive into the settings and optimize your driving experience. | Superchips Flashcal F5 Calibration Tool 3545-S1