Hey guys, nice to be here and look forward to talking about our trucks. I have a 2009 and have went with the dpf, egr unplugged and smarty jr programmer route with a cold air intake (airaid) and you wouldn't believe the difference. I did the delete at 1500 miles hoping to avoid the dreaded egr/dpf/turbo issues and so far, so good (knock on wood). With the truck completely stock, I could get about 16 mpg (around town) and now I'm right at 19 mpg (around town) but no highway mpg yet but it should be close to 22 mpg. Also, I run 315/70/17 BFG's which probably cost me a little in the fuel economy department. 3200 miles so far and the only issue was a dead cell in one of the factory batteries.