Yamaha YFZ450R Oil Breather Tank

This bottle replaces the stock breather box that normally sits at the back of the quad. With this bottle mounted to the clutch cable guide, the oil drains back into the engine instead of into the air box. All of the top Yamaha racers including Chad Wienen use custom bottles like this. This one can be purchased for $130 (plus shipping) through Avina Prep by emailing avinaprep1@yahoo.com.