The component with the lowest price in the Muffler(s) schematic is the Bolt-flanged,8x30.
Some items from this specific schematic: Cover-exhaust Pipe,rr, Collar,8.2x17x4.5, Bolt,flanged,6x12, Gasket,38.9x46.4x3.0 (nas).
This Muffler(s) assembly utilises fifteen Bolt-flanged-small(s) - the highest specified component.