This schematic depicts all components used in the Gl1800 Gold Wing 2008 (8) Australia / Ab Nav Exhaust Muffler (6-e,ek,f ,u,2ed)(7/8-except Br) partslist.
The most reasonably priced component used on the Gl1800 Gold Wing 2008 (8) Australia / Ab Nav Exhaust Muffler (6-e,ek,f ,u,2ed)(7/8-except Br) is the Washer,plain, 6mm.
On this parts fiche the Rubber,pkg.protr. (nas) is the most specified component.