I went out and started my V up today and it sounded a little louder than normal. After it warmed up I gave it some throttle and felt underneath the muffler at the same time. Then I got down and looked under the bike to see and the muffler has a pin hole in it. I don't know how it got a hole in it. lt's about 1/16 of an inch or a little smaller. It's up near the front of the muffler.