I have the stock exhaust on my '13 and the Rocky Mountain brand carbon fiber endcap/spark arrestor. The problem? I hate the sound of the stock exhaust. I loved the way my '06 & '08 sounded pretty much no matter which exhaust I ran (stock, Leo VInce, Dr D, FMF) but the '13 just sounds odd. I usually don't care about this kind of stuff but I dislike it so much that I am willing to spend some money just to change it! So my question is...has noticed a significant change to the tone or sound by switching to an aftermarket slip-on? I don't want it to be louder than stock...just different.