Feuling BA Slim Air Cleaner Kit For Harley The Feuling BA Slim Air Cleaner Kit is built for riders who want improved airflow with a more comfortable riding position. Its slim cage profile provides extra leg room while the precision-machined billet velocity stack enhances throttle response and airflow efficiency. A reusable high-flow filter and one-piece billet construction deliver a streamlined look with simplified installation. Features: Slimmer cage provides more right-side leg clearance Slim B/A cage width is 2.375 Standard B/A cage width is 3.000 Made in the USA