So within the next few months Ill be doing some things to better my mpgs. Right now with my current set up, I only average 12.5 mpgs and thats with babying it! Im going to swap out to some AT tires, probably the 275/65/20 Falken Rocky Mountain ATS..as my truck is pretty much a pavement queen. A little smaller, lighter, and less aggressive than my Nitto Trails! Plus they are about $500 less per set than my Nittos! Ill also be getting a tuner, probably a Bully Dog! I hope the switch will boost my mpgs to somewhere around averaging 16-17 mpgs!...Would a cai be a noticeable difference as well? I do have a drop in k&n filter now....any other tips or advice please let me know..thanks guys!