I have a 2002 KX250 with an FMF Q silencer. The down pipe inside the end cap broke off and after talking to FMF they do not offer that part. It is easy enough to repair if I had the part but it is not available. So now I am looking for a new silencer. I would like the silencer to have good performance, a spark arrestor would be nice but not completely necessary, I don't really want obnoxiously loud either. My bike is pretty much stock other than the Q that is on it. Thanks for the replies.