K&N REPLACEMENT AIR FILTER TO SUIT TOYOTA COROLLA AE101R-AE112R 7A-FE 4A-FE 4A-GE 7A-FET 1.6 1.8L I4This K&N replacement air filter is designed to increase the horsepower and acceleration while providing excellent filtration. It is washable and reusable, and is custom designed to fit into your existing factory air box. Its drop in design means adding performance is simple. With most vehicles you simply have to remove the disposable air filter and replace it with a K&N air filter. This air filter suits Toyota Corolla fitted with 4A FE, 7A FE, 4A GE