exhaust
#2
I would just do a muffler delete if it were my truck but damn it's going to be loud. When I first bought my Cummins I straight piped it for a little while then I decided to put a muffler on it. And I'm sure my neighbors did not like it very much. I like the sound of a Aeroturbine 4040XL but that's just my opionion.
#7
#9