The component with the lowest price in the MUFFLER schematic is the Washer,exhaust Pipe Cover.
The Bolt(6x10) is the most widely applied product in the LT-Z400 QUAD SPORT 2005 (K5) USA (E03) QUADSPORT QUAD-SPORT MUFFLER ( three times ).
Some items from this specific schematic: 14850-07g11, Connector,muffler Joint, Bolt(6x10), Spacer.