In the april issue of atvsport on page 19 there is product called a TPI Valve made by Thunder Products. Has anybody bought one of these? It looks like it would work pretty good for the predator air box, that way if you were going to be riding in wet conditions all you would have to do is slide the door down and your air box would be closed back up. I know that it'll make the quad run rich but thats better than a bunch of water getting sucked through your motor. Acording to their web site the "low boy" is 2 5/8" square with replaceable filters. It looks like a pretty good idea if you want to see one check out www.thunderproducts.com