I found this product on the sick bike parts website. it is a muffler for their expansion chamber pipe that is supposed to make it quieter without cutting performance. Has anybody had any experience with these?? I was reading a thread a few weeks ago from a guy who had put a small muffler from a 4 stroke lawnmower? i believe it was that looked almost identical to what this is. my goal is to put together a 2 stroke build that is as quiet as possible. Any tips would be appreciated.