If you don't remember the last time you replaced your air filters, it's probably time for some new ones. Replace your factory air filters with K&N units. K&N air filters cost a fraction of the cost of the OEM air filter and never need to be replaced. 

K&N filters offer additional performance over the factory paper air filter and increase the engine's intake noise. The K&N Air Filters replace the factory air filters on the 360 create horsepower gains, amplify the engine's intake sound and make throttle response quicker. 

Auction is for a pair of filters. 

The filters are a great addition to the Reid Performance Intake.  

K&N Part No. 33-2494