The Screw,pan,6x10 is the lowest priced item on this Exhaust Muffler schematic.
Some items from this specific schematic: Sensor,oxygen,2-3, Bolt,flange,8x35, Protector.muff, Mount Rubber,muff.
The Exhaust Muffler is made up of components including this Pipe Comp,exh which is the most expensive.