Haven't seen one, so I thought I would start this for us guys! Those of you that run the smarty. Post what levels you have ran, where you got your best numbers at, what yields the best fuel mileage! Now I know all trucks are not the same, but those wanting to try different set-ups don't have to ramble with it all day! Can look here and get advice, and see if that certain tune runs good on their trucks! And we all know the tnt pops on our years, so what tune did you run to stop this from happening e.t.c! :thumbsup: