Ehh, you got me, Mark. :wink: I was assuming he did not want to shell out $100 extra to be able to use the tuner.
Anyway, Nj3T, you will love the tune. If you run premium, the truck will be a rocket. If you're like me and shudder at the extra +/- 30 cents/gallon, you will still really enjoy the 87 octane tune. The power improvement is quite noticeable. One thing that I changed was the shift pressure, because the stock 87 tune shifted harder than I thought was necessary. Thankfully, it is an easy change to make.
Let us know if you get it and how you like it. :cheers: