$69.95 "Scout drop in air filter"  part #1001  (shipping $11.95) This is a K&N PL-1115 reuseable air filter that replaces the stock paper filter. We are an authorized dealer for K&N products. It allows more air to flow to the combustion chambers. Papers filters get dirty and restrict the air flow long before most people replace them. The K&N can be cleaned and re-oiled for the life of the bike.