aFe MagnumFLOW Air Filters OER Pro DRY S 09-12 Audi A4 V6 3.0L / 09 A4 V6 3.2LConstructed with 100 percent polyurethane on top and bottom, this non oiled OE replacement filter provides years of hassle free service. 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