I use the stock air box lid with the round foam vents, pro flow, and the foam that came with it. I usually only run the inner foam though. PJ 1 foam filter cleaner and oil. I dont like K&N filters myself.
I like the polished lid that alba sells with the chanels (i guess) that supposedly let air in but not water, but I think they wanted like 100 bucks and thats why I didnt get it. Anyone ever tried that?