Has anyone used this air cleaner? I love the look. I was wondering if it performed well.

http://www.underworldnewyork.com/the...her(info).html

 

Might as well go with a Hypercharger...many more fit/finish/style options. Vacuum-controlled butterflies open and close, helping to keep debris and water out of the filter at normal cruising speeds. The butterflies open wide at full throttle to provide maximum airflow when your engine needs it most.
click here

 

Looks a lot like a Kuryackyn unit.

 

it looks cool....

 

I don't think it will work unlessyou have a S&S carb. I don't recommend Hypercharger either. If you do at least go with a different crank case vent kit cause theres is crap.
You can find these cheap on e-bay, that's what I got, but I installed with snow on the ground and haven't had a chance to even start it. Dunno about performance yet...