K&N Replacement Air Filter - Tapered Conical - Race Specific 04-07 Honda CBR1000RRThis 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. This Part Fits: Year Make Model Submodel 2004 2007