This air cleaner allows you to remove the stock air cleaner box and install an oil cooler or oil catch tank.
 
*No fuel adjustment is required if you are using a stock engine with a Kitaco JMCA certified muffler or a stock muffler.
 
○ UNI replacement filter
(PK-4E φ25/φ35) 515-1100020
*The stock air cleaner box is covered with the included rubber grommet.