Originally Posted by Stumblefoot

Why buy a 2011 with all the emission equipment and then want it to roll coal? Deleting the emission equipment is illegal in all states, and you will NEVER be able to legally sell or trade in the truck with altered emission equipment. The Bully Dog should give you better fuel mileage IF you keep your foot out of the turbo. More power, just don't overdo it. But if you bought it to blow smoke, you spent money for nothing, It is programed to work WITH you emission equipment, not against it. I have over 100,000 miles on my 2012 F450, exhaust is as clean as the day I bought it.