So I just purchased Superchips Cortex Tuner and wow this thing is NICE!!! I can totally see my MPG drop now b/c it's hard to keep the foot off! Currently running the 93 OCT tune, will try others soon...This thing really woke the HEMI up...

 

Yeah, thats how my exh and mileage went. It sounds so good and you learn just how to hold the pedal to make it sound off

 

Yes it sure sounds good. I can't wait to get home and drive the truck again, been traveling for work. What tune are you running? I need to play with it some when I get back..