The most reasonably priced component used on the Gsxr600 2004 (k4) Usa (e03) Installation Parts (2) is the Cushion.
A sample from the products for the Installation Parts (2) include: Bracket,under Cowling Lwr,r, Bracket,under Cowling Lwr,l, Screw(5x13), Bolt.
With ten applications this Clip is the most specified part.