Buell XB 2003-2010 models Black Anodized Billet catch can for all Buell XB 9/12 models from 2003-2010
Catch can mounts to the front of the oil cooler mount, and is specifically designed for the Buell XB, so it looks like it belongs there. When you run your crankcase breather lines out of the intake, some accumulation occurs- You can terminate the lines to just a breather filter, but you’ll get some oil drip. This catch can catches that oil drip that accumulates. ASBA9306 includes the inlet and outlet hose barb fittings and a drain fitting. You may want to put a Breather filter K&n 62-1000 or equivalent filter on the outlet hose to act as a "diaper" for any residual oil mist.
T- connector can be found here