K & N reusable air filter, fits stock air box for Mazda 3 (2006+). Never buy expensive paper air filters again! Improves power and gas mileage, better air flow. Just wash and re-oil. Virtually new, only about 200 miles on it (switched to a Cold Intake system which was a waste of time and money- should've stayed with the inbox K&N I'm now selling!!). Cost $85.00, Sell- $45.00 (guaranteed for Life).

Plus shipping (not much).

holtrx@gmail.com

San Diego, CA