The lowest price component in this Muffler parts-list fiche is the Nut.
A sample from the products for the Muffler include: Pipe,joint,l, Bolt(8x45), Connector,muffler, Pipe,joint,r.
twenty-two components are shown in this Gsx1300rz Hayabusa 2004 (k4) Usa (e03) Muffler exploded diagram.