2 7/16" ID Mounting Flange. Filter Base: 3 3/4", Filter Top: 3", Filter Length: 6", Flange Angle: 20°.

• K&N clamp-on air filters provide absolutely the best arrangement for good clean air and lots of it
• What you need for all that extra horsepower fun
• Universal in style, K&N snowmobile filters replace the existing airbox and OEM stock filter
• Washable and reusable