K&N XStream® Air Flow Tops replace the top of your existing round filter and add a new dimension to engine breathing by feeding your engine all the air it can use. They are washable and reusable just like other K&N Air Filters.

Part 66-1401 Xstream Specifications
Filter Material: Cotton Gauze
Filter Re-Oiling Amount: 0.92 oz (27 ml)
Flanges: None
Height: 1 in (25 mm)
Outside Diameter: 14 in (356 mm)
Top Material/Finish: Black Powder Coated
Top Style: X-Stream
Weight: 1.7 lb (0.8 kg)

K&N X-Stream Air Filter 66-1401 fits the following 14" Filters
E-3740   2.3"
E-1650   3"
E-3750   4"
E-3760   5"