Batwing?

Anybody run one of these? It's an Aluminum baffle that straightens the air inside the air box, here is a link:

http://www.ebay.com/itm/152185539142

I just installed one and it seems to run smoother.

Yeah, me, ade it myself.
The std airbox is super compromised wrt flow, and this 'air-guide' improves on this.
Bike runs a bit better with it, more torque - with my TM40 carb.

fully agree with you there burp, that std airbox is a pain to get good flow out of.., thats why i built a replacement when modding my brp