Check out any of the seventeen Muffler(s) components enlisted.
The Collar,flng,8.8x10.6 is the most widely applied product in the ER650C9F ER6N 2009 USA Muffler(s) ( six times ).
The most reasonably priced component used on the Er650c9f Er6n 2009 Usa Muffler(s) is the Bolt,socket,6x14.