K&N 04-09 Yamaha YFZ450 Powerlid Air Box Cover K&N Engineering YA-4504-T

The K&N Powerlid eliminates restrictive ATV intake snorkels by replacing the stock air box lid with a high airflow filter lid. The Powerlid works in conjunction with a K&N replacement air filter (sold separately) to provide excellent filtration with less restriction allowing increased airflow for more horsepower. The POWERLID snaps in place with no air box modification necessary. All K&N Powerlids come with a PreCharger filter wrap for the lid and a carburetor jet selection kit if required.