Constructed with 100% polyurethane on all five sides, this high-flow, non-oiled OE replacement performance filter outflows the stock filter by up to 48% for improved horsepower and torque. The Pro DRY S air filter uses three layers of progressively finer mesh cotton gauze media to provide maximum airflow for best performance results. Washable and reusable for multiple cleaning cycles, this filter is designed with open, evenly spaced pleats that provide excellent dust holding capacity for longer service cycle between cleanings. An integrated urethane bump seal insures a tight, no leak seal over the life of the filter.