With a quantity of six pieces, the Washer, Protector is the most used part in the EXHAUST diagram.
Some items from this specific schematic: Protector, Exhaust Pipe, Washer, Protector, Spark Arrester Assy, Screw, Bind(2tv).
Of all the components that make up this Exhaust the Bolt, Flange(4my) has the lowest price.