aFe MagnumFLOW Air Filters IAF PDS A/F PDS 5-1/2F x 7B x 4-3/4T x 4-1/2H w/ 1Hole - 21-90052 fits_1988-1993`BMW`3 Series This unit is 100% TIG-Welded

This unit is 100% TIG-Welded by certified craftsmen for race proven strength and durability and is a direct bolt-on system that requires no modifications

5-axis CNC precision-cut for an exact fit

pair the valved rear section with our high-performance X-pipe mid-section

Racing Performance

Our commitment to excellence is evident in the use of dry carbon fiber—a process born from precision and innovation

aFe MagnumFLOW Air Filters IAF PDS A/F PDS 5-1/2F x 7B x 4-3/4T x 4-1/2H w/ 1Hole - 21-90052 fits_1988-1993`BMW`3 Series This unit is 100% TIG-WeldedWith three layers of progressively finer mesh synthetic media between 100% polyurethane top and base, this high flow, "oil free" conical performance filter provides maximum convenience and easy maintenance with excellent airflow. Washable and reusable for multiple cleanings, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Pliable polyurethane flange with integrated bumps insures