What breather kit?

[Ponytail]

New Breather Kit for 91- something Sportster for sale on Ebay. I can understand the need for a breather kit with THOSE...

http://cgi.ebay.com/ebaymotors/HEAD...tegoryZ35574QQihZ010QQitemZ200046054730QQrdZ1

 

[RoseRed]

 

[Lugnut]

I don't have to have a sportster to bid on those do I?