I'd get a K&N, AEM, INJEN cone or whatever as long as it's the cotton gauze. some of the less expensive filters have a woven pattern that expands when wet and lets little holes in the filter.. so you would not be able to clean it. the less expensive ones that don't do that are fine but you'll get more flow out of an actual gauze one and it will likely last longer and filter out more stuff. Also, making a shield to keep the hot air away from the cone will probably help a little bit
good luck