The nine Cb50r Dream 2004 (4) Muffler component parts are all listed in this schematic.
Some items from this specific schematic: Bolt,flange,dr.8x, Muffler, L. Ex., Muffler, R. Ex., Nut, Flange, 8mm.
The Muffler is made up of components including this Muffler, R. Ex. which is the most expensive.