Of all the components that make up this Exhaust the Screw, Bind(2tv) has the lowest price.
Parts such as the Exhaust: Rivet (s/m), Washer, Wave(3rw), Bolt, Washer Based(36y), Washer, Plate are included in the Yz250f 2008 5xcm Europe 1g5xc-100ea Exhaust parts fiche.
In this schematic the " Rivet (s/m)" is used most often.
