I've had Troyer tunes for the last 8 years or so. Now it's time to trade the truck in. The 3 tunes I have are 87 performance, 87 tow, and 92 performance.
Since I'm trading in the next owner will have no clue about the tunes. Should I go back to stock or put the 87 tow tune in? I do have larger tires 285/70/17 vs the stock 255/70 so going back to stock will throw off the speedo.

 

Is the 255 correct? My 02 came stock with 265/70x17s. If you had 265s on it in the beginning the tires make a 3% difference in the speedometer. I would return it to stock and sell the tuner. I suspect if you leave the tune in and give the tuner to the dealer, the tuner will never make it to the next owner anyway.