My stock 2012 Fat Bob exhaust made it sound like a 250. These slip-on mufflers released that V Twin rumble. They look good, were easy to fit, and sound nice. The only annoyance was that the baffles tended to rattle a little which sounded tinny. I pulled the baffles out, put them in a vice and bent the end of the baffle out a little so it would contact the shell of the muffler better. Problem fixed in about 10 mins.