when I bought my 04 WR450 it had all the baffles removed from the exhaust, Ran great but was way to loud. I recently entered an off road race and was sound tested(they want 96db max). Mine tested at 112db:thumbsdn: , since this I have ordered the pro moto billet silencer (from the TT store). My question is this, I have read many articles on keeping our bikes quieter and many refer to muffler packing. When I look inside my muffler it is just a big open can with a spark arrester, no packing of any kind that I can see. Now is this something that was removed by the previous owner or should there be no packing. If there is supposed to be packing how do I go about repacking my muffler and am I missing any other parts?