I just change my exhaust on the 2010 Camaro SS auto (BBK Cold Air, Clear Bra, Window Tint) to the Flowmaster Hushpower 409s. This was just what I was looking for. A little more sound and better performance. I video the process and loaded it unto youtube (Please see link). It only cost me $54 to make the change. I had this done at Fred's Muffler in Wentzville (www.fredmuffler.com). They did a very good job and I am very please with them. I got the Flowmaster Hushpower online at (www.lmperformance.com). I got a very good price and it was ship for free. I order on Sunday and they were delivered on Wednesday.