The Cushion(11.5x22x20) is the most widely applied product in the GSXR600 1998 (W) USA (E03) SEAT TAIL BOX (MODEL Y) ( two times ).
The Seat Tail Box (model Y) is made up of components including this Box Assembly,seat Tail which is the most expensive.
The most reasonably priced component used on the Gsxr600 1998 (w) Usa (e03) Seat Tail Box (model Y) is the Cushion(11.5x22x20).