will it hurt to run with out a muffler?
I raced the GNCC at the Wisp this year, i got hit the first lap and knock my muffler loose. I ran the first lap, pitted tie wired it on, made it till the start of the third lap, them it fell off. I put it in my camel back and rode the last 8 miles with no muffler. Man I was amazed at how fast everyone will get out of your way!!