Check out any of the nineteen Exhaust Muffler components enlisted.
Parts such as the Exhaust Muffler: Packing,ex. (nas), Exh.pipe Comp.,r, Bolt Flan.8x28, Gasket,muffler (nas) are included in the Xr650r 2005 (5) General Export / Csw Exhaust Muffler parts fiche.
The most reasonably priced component used on the Xr650r 2005 (5) General Export / Csw Exhaust Muffler is the Nut, Flange, 8mm.