The component with the lowest price in the EXHAUST MUFFLER schematic is the Nut,flange,8mm.
Some items from this specific schematic: Brkt.muffler, Gasket,ex.pipe (nas), Rubber,protector, Muff.comp.exh.
The Exhaust Muffler assembly is constructed from several parts from which the Muff.comp.exh is the most expensive.