The Exhaust is made up of components including this Reed Valve Assy which is the most expensive.
A sample from the products for the Exhaust include: Bolt, Flange(4my), Bolt, Button Head, Protector, Muffler, Protector, Muffler.
The most reasonably priced component used on the Ybr250 2007 5d11 Greece 1f5d1-300e1 Exhaust is the Bolt, Flange (4h7).