I think Okie was implying that you might find what you are looking for at Pro Circuit. I have an 03 Honda CR250R with a Pro Circuit pipe and silencer. I just remove the allen screws, slide out the tube with packing, remove old nasty packing and wrap new packing on the tube. Make sure that the holes on the tube are clear. I use the fiberglass wrap found at Home Depot. Its cheap and works rather well. You can find it in the Plumbing department. If you need more detailed instructions for your particular silencer...contact pro circuit. :cool: