This package includes custom built tunes developed to help your truck run at it’s best. Tow better, rip down a track, or just make your truck an all around better performer for daily driving, this device has that ability. You are also able to monitor your vehicles’ parameters to make sure all is well. The MM3 platform can tune multiple trucks with one device (with the purchase of additional support packs & vin licenses). It also allows you to do your own adjustments, but experience with such is recommended.