I hope this will save someone from making the same mistake, some time ago I bought a K & N air filter off this fellow member, it was for a stock Banshee air box, then I tried to install it and of course it fits like ####, so I buy a Pro Flow adapter from a GOOD guy Heidi {Dane } guess what they are don`t take the same filters, the Pro Flow takes a different filter, hope this helps someone else, so now looking for a Pro Flow filter, Milo_32000