I have one coming in next week - I wanted the nice quiet low RPM ride and the nice wail higher up $420 shipped from Classic. That's not bad at all considering all the parts you get, and you don't need to go hacking up your parts to get it to fit and cutting holes, like the aftermarket stuff.

 

They are $85 and less from Classic and many other dealers. Paper filters also happen to filter VERY well. Much better than the crappy K&N and other gauze types. Foam filters well, but only for a short time.