So the economy caught up with my wallet. Power is good, but milage is better for me... at least right now. What is the best MILAGE chip that I can buy, and what is the best for the money. Is it neccesary to run gauges on a milage chip? I just drove to MN and back, and averaged about 18 on the two lane, and 15.5 on the interstate @ 72 mph. Not that good at all for running completely empty. I know I have bigger tires, but really? What about all the guys that told me I would get 20-22 before I bought this thing? Where you at now?