K&N X-Stream Top Assembly 9in OD / 5-1/8in Flange / 2-3/4 Velocity Stack

Not only does the K&N XStream add filter area, it actually redirects airflow inside the filter to pull in more air through the side pleats for even greater performance efficiency. Cleanable and reusable, the XStream Air Flow Top filter delivers the best protection available for your engine.
Installation Instructions
Technical Bulletin