Parts such as the Muffler: Nut, Gasket,muffler Joint (nas), Bolt 8x45, Bolt(8x35) are included in the Gsxr600z 2003 (k3) Usa (e03) Muffler parts fiche.
The Nut is the lowest priced item on this Muffler schematic.
With a quantity of eight pieces, the Bolt is the most used part in the MUFFLER diagram.