HTT Motorcycle Black Billet Aluminum Cone Spike Air Cleaner Kit Intake Filter For Suzuki Boulevard M109 (All Years) High Quality Billet Aluminum Cone Spike Air Cleaner Kit intake Features an Aggressive look and Performance Gain 360 Degree Slotted Spike Cover Washable Filter,Generic Brand Filter can be replaced with a K&N (KN-SP3301),No installation guide Fitment: Suzuki Boulevard M109 (All Years)