The Air Cleaner is made up of components including this Valve Assy.,bypas which is the most expensive.
Some items from this specific schematic: Resonator,r Duct, Seal,air/c Thrott, Resonator,l Duct, Tube 3.5x35.
The most reasonably priced component used on the Cb600f3 Hornet 2010 (a) France / Cmf St 25k Air Cleaner is the Screw,tapping.