Of all the components used in this assembly the Valve Assy,air Cut is the most expensive.
Parts such as the 2nd Air: Hose,2nd Air Valve,l, Bracket,2nd Air Valve, Clip, Hose,2nd Air Cleaner are included in the Gsxr600x 2005 (k5) Usa (e03) 2nd Air parts fiche.
The component with the lowest price in the 2ND AIR schematic is the Clip.
