The K&N X-Stream top assembly is a washable, reusable air filter top that increases filter area and redirects airflow to draw more air through the side pleats for improved efficiency. Measuring roughly 11 inches outer diameter with a 5.125-inch neck flange, it delivers longer service intervals and strong filtration, making it a practical choice for maintenance-focused performance setups.
K&N X-Stream Top Filter Red 11in / 5.125in Neck Flange / 3.5in Height