The Bolt,flange 8x35 is the lowest priced item on this Muffler schematic.
Some items from this specific schematic: Joint,ex.pipe, Packing,ex.pipe (mca), Bolt,flg.,8x35, Bolt,flange,8x20.
With a quantity of eight pieces, the Nut,cap,6mm is the most used part in the MUFFLER diagram.