Some items from this specific schematic: Bolt,flange 6x60, Filter,dlain Tube, Bolt,flange,6x16, Bulk Hose, Vinyl.
The most reasonably priced component used on the Gl1100 Goldwing 1980 (a) Usa Air Cleaner is the Bolt,flange,6x16.
The Air Cleaner is made up of components including this Case,air Cleaner which is the most expensive.