The washable, reusable high-flow air filters from K&N® feature a top-notch design made from multi-layered cotton media with oil, designed to improve airflow and capture contaminants. Each air filter is reusable, built to last for the entire lifespan of your vehicle. The K&N replacement pleated filters are engineered for easy installation in your motorcycle's airbox. This filter is designed to provide increased airflow and enhanced performance. The pleated section ensures a much larger filtering surface area, extending the intervals between necessary cleanings. It installs directly without any modifications needed and has been manufactured in America for over 40 years now.