I wanted a louder exhaust for my bike and D&D recommended me to go with a different baffle then the current concentric one I orded when I bought my system. I was going to order the new baffle and switch it out and D&D recommended to purchase a whole new muffler as a lot of folk ruin their mufflers trying to get the stock baffles out. So I ordered a new complete muffler and am selling my stock muffler with the concentric baffle (quiet). This is for the muffler part only I'm keeping my headpipes! The one I'm selling is Chrome, backcut, with concentric baffle for BOss fatcat headpipes. It came off my 2011 RGC and has about 1,500 miles on it... looks new.