"Monster Sucker Air Cleaner

• Hidden breather technology for a reliable intake that enhances the performance of the engine
• Hidden breathers are O-ringed at the heads and exits out the mouth of the throttle body to provide efficient engine breathing, eliminating the need for any external hoses or hardware
• Filter is constructed from synthetic material that is water-resistant, which in most cases eliminate the need for a rain sock
• Filters are reusable and do not require oil, just rinse and reuse
• Filter features a built-in inverted top to pull in air from all sides resulting in more performance-gaining airflow

For '01-'17 Twin Cam Delphi EFI and '99-'06 Twin Cam CV carb models.