My local Advanced Auto Parts carries a catback Dynamax exhaust for the R/T that I was thinking about buying. Has anyone tried it? Does it sound decent? I really don't want to spend the $360 on it just to find out that it sounds stock.

-Also, on Youtube, there is a few videos that the owner put on straight pipes but left the cat on and they sounded really good. The best was where they did 2.5" piping. Is there any harm in removing the muffler but leaving the catalytic converter?