K&N RACE AIR FILTER APRILIA RSV4 09-13/RSV4R 10-12 / TUONO V4R 11-15/TUONO V4 15-24

This K&N racing air filter has just two layers of cotton to provide even lower air restriction than our replacement air filter for street vehicles. Unlike K&N replacement air filters, fuel management modifications will be necessary with this racing filter. K&N racing air filters are washable and reusable and come with a one year limited warranty. This product is for closed course competition use only.