I have a K&N FIPK kit. No one I know here runs it or really wants to run K&N filters but this kit is awesome in my book. I ordered 2 scotty III's in august and never recieved them (long story and bad experience from and aftermarket vendor who I will no longer be using). My system is clean, very nice fit and finish, and works 100% flawless without removing the plastic heat shield on the 600's. It contained a new intake tube as well with the kit, (replaces the blocked up stock tube). Its an awesome kit and cheaper in price than any other intakes I could find. Hope this helps.