After testing tunes from a couple different tuners I must say TSD tunes are night and day different from any others I tried. From drivability to throttle response to putting straight power down I was very impressed with the shifting spot on crisp. Another thing I liked about their tunes is it doesn’t require as much throttle input to receive power almost makes the truck feel like it’s much lighter. The other two tuners I tried are very good tunes but to me they seem very similar when I loaded the TSD tunes you and immediately feel the difference. I would highly recommend them. I went with their Mild panty Dropper and Super Panty Dropper with early lock up as my Truck is studded.