So I'm really interested in buying a new 6.7 powerstroke when the 2012s come out. I'm iffy on buying a 2011 being the first year for the new engine. But I'm a little out of date on the whole emission laws. Everything I see for dpf/urea delete and programmers and such say "off road use only". How illegal is it to change the exhaust and ad a chip to these new trucks? And also is it just a E-check type of thing depending on where you live or is DOT going to be out on the highways pulling over every 3/4 ton and bigger pickup to check for exhaust modifications? Any info is helpful thank you!