don't forget the aeroturbine mufflerWhich muffler is quieter - the Dynomax or the Walker? I want to get the quietest one.
I'd run the exhaust out under the truck if it wouldn't kill the looks and fording depth.
......
its the only straight through muffler that is DOT approved for replacing the factory mufflers. They are pretty popular with the diesel truck crowd for power gains from flowing better but not being louder than stock.
youtube has a lot of videos of people with the aero turbine, I may be the first aeroturbine deuce to post a youtube video though.
(it's a lot more expensive though at 140$ compared to 50$ for those others)