Constructed with 100-percent polyurethane on top and bottom, this high flow, non-oiled OE replacement performance filter will outflow stock paper filter for improved horsepower and torque. Three Layers of Progressive Synthetic (Dry) Media for Maximum Convenience. Washable and reusable for multiple cleaning cycles, the tall open evenly spaced pleats provide excellent dust holding capacity for longer service cycle between cleanings. Integrated urethane bump seal insures tight, no leak seal over the life of the filter. Magnum FLOW OE Replacement Air Filter w/ Pro DRY S Media Porsche Boxster/Cayman (718) 17-20 H4-2.0L/2.5L (t) Porsche Boxster/Cayman (718) 17-20 H4-2.0L/2.5L (t)