really quiet in the cab, just a low growl to it really. not too loud with the windows down either. i wish it was louder lol

get some 4" from the turbo back..... no muffler will make it growl.... i miss the way my old powerstroke sounded with a 6" tip, full 4" and no muffler...... for it being such a slow truck i sure do miss it.....:cry:

i plan on getting 5'' from the turbo back...eventually when im not so broke