Parts such as the Exhaust Muffler: Chamber Comp,exh., Nut, Flange, 8mm, Washer,8mm, Nut,cap,8mm are included in the Nsr125r 1998 (w) Portugal Exhaust Muffler parts fiche.
The component with the lowest price in the EXHAUST MUFFLER schematic is the Nut, Flange, 8mm.
With four applications this Rubber,muff,set is the most specified part.