Hey guys, any recommendations about which filter is best? I am leaning towards the Pro-Flow because it is a clamp on style, but I remember awhile ago people where having problems with them sealing correctly. I do most of my riding in the sand. Thanks for the help.

 

You can get the pro-flo set-up with a K&N or a foam filter.
Check this link:
http://www.ctracing.com/air.htm
These guys build and race atv engines, so they should know what they are talking about.

 

I was one of the guys that had problems with the Pro Flow. They said a few were machined incorrectly and sent me a new one. I am happy with it now.

 

MAyeb you should go with the K&N and outerwears. Against sand, I've heard this is the best solution (actually it is, since it's what I have ). A K&N is less a pain to clean...and with a simple K&N, you get the clamp on filter (needs like 1 minute...and throwing away the K&N official directions).
K&N all the way for me!!