The most reasonably priced component used on the Gs1000 1979 (n) Usa (e03) Muffler is the Lock Washer.
This Body,muffler is the most expensive of the items that make up this Muffler assembly.
Some items from this specific schematic: Plate,exhaust, Clamp,muffler Connector,r, Clamp,exhaust Pipe, Body,muffler.