K&N High Flow Race Air Filter Aprilia RSV4R 09-20

These air filters are for asphalt racing use only. It is not intended for a dirt track, off-road or highway use. The specially designed 2 ply air filter is less restrictive and produces more air-flow CFM (cubic feet per minute) for race specific engines. K&N racing air filters are designed to increase horsepower and acceleration. K&N air filters are hand made in the United States and are constructed of the finest materials. K&N has developed racing filters for just about every form of racing in the world.

Product Features:

• Designed with 25% less pleats in order to open up the intake tract
• Built with only two layers of special pleated cotton media
• Lowers restriction, increasing horsepower and torque
• Fit directly into your OEM air box assembly with an OEM-style sealing bead
• Washable and reusable, no cutting or fitting required
• Race Spec sportbike filters are designed for closed course competition use only
• Fuel management modifications will be necessary
• Made in the U.S.A. for over 40 years
• Washable and reusable