The lowest price component in this Exhaust Muffler parts-list fiche is the Washer,plain, 6mm.
Some items from this specific schematic: Bolt,flange,6x10, Washer,plain, 6mm, Band,l Exh Pipe, Rubber,protr.pkg. (nas).
The Exhaust Muffler assembly is constructed from several parts from which the Muffler Comp. is the most expensive.