K&N High-Flow Air Filters - BMW R1300GSFeatures Designed to provide increased horsepower and acceleration Pleated cotton media provides a large filtration area offering low restriction, high capacity and long service intervals Multiple layers of woven cotton gauze media offers excellent filtration Fits directly into OEM air box with application specific sealing bead ensuring a precise fit No fuel management modifications are required to obtain increased performance Washable & reusable, pre