K&N Universal X-Stream Clamp-On Round Air Filter 3.531in Flg ID/4in OD/5.969in H Brakes- Rotors & Pads>Brake Pads - Racing cup holders

cup holders

hole in 3-1/2in

For a fast street car or a weekend racer

Ferrea BMW S55 32mm 4

K&N Universal X-Stream Clamp-On Round Air Filter 3.531in Flg ID/4in OD/5.969in H Brakes- Rotors & Pads>Brake Pads - Racing cup holdersK&N XStream Top Universal Air Filters take performance to the next level with the addition of a filter within the filter's top adding more filter area for higher air flow and a longer service interval. The XStream Air Filter provides awesome air flow and outstanding filtration. When racing, in any environment, racers need all the protection and airflow they can get. K&N delivers. All K&N universal air filters are constructed with ultra strong molded