Hey all what up. I hail from the southwest sode of ohio with my 05 z71. Can anyone point me in the direction for the tuning section. I have been learning the ways of the hp tuners but still on not very happy with my end results. I know the 5.3 in these things in stock trim are turds just trying to see if there is something I am over looking. Btw what are you guys getting for fuel mileage on the highway. At 70 mph on flat ground I get 14.0 -14.2 per the dash.