I have about 24000 now and Im getting about the same as you now. not bad for a full size truck!!waytogo
Yea for the longest time I couldn't get better than 14mpg but once I got it tuned it jump up to 16mpg.
I'm running the Diablo 120 setting and MBRP 4" cat back on my truck and it inproved my MPG a lot!!! On a good long trip up to my parents in PA(aout 250 miles each way) I get close to 22-23MPG. My average MPH is about 75-80 MPH while driving. soon Im going to get a down pipe and fingerstick to try to finangle about 1-2 MPG more out of it I hope!!
