Buell 1125 K&N lifetime replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. BU-1108
These filters are custom designed to fit into your existing factory air box. Their drop-in design means adding performance is simple. Simply remove the disposable air filter and replace it with a K&N; there is NEVER any cutting or fitting required. Our stock replacement air filters for street vehicles are covered by our famous K&N Million-Mile Limited Warranty.
It will deliver better airflow and has less maintanance. Every time you service the bike, you only need to inspect the filter, and when it is too dry spray it with the K&N maintenance kit. We higly recommand to also order this kit.