I live in michigan and ride pretty much all single track. I joined the CCC this year and did the atlanta ride. I didn't even get checked for sound they saw that I had a pro moto spark arestor and silencer. When I rode the color tour this weekend they would not let me ride because at an idel the DNR officer gaged me between 94.7db and 94.9db and 1/8 throttle the gaged me at @101db this is a problem. Pro moto has there sprk arrestor and silencer rated at between 94 - 96db this is not true. I have been searching on how to get the bike quieter but not lose its power without spending a whole lot of money. Does anybody have any ideas or has anybody be able to quiet the beast. I want to ride the rites of spring in March but wont be able to do this leagally if it is not quiet. P.S. I called Pro Moto and they said they have no problem passing in Calf. and there tech is supposed to getting back with me.