BMW aFe Power Magnum FLOW OE Replacement Air Filter w Pro DRY S AFE 31 aFe Magnum Flow OE Replacement Air Filter Porsche Panamera (10 16) Except GTS (30 10243) Magnum FLOW OE Replacement Air Filter Walmart.com Porsche aFe Magnum FLOW Pro 5R OE Replacement Air Filter aFe Power AFE. Magnum Flow Pro 5R Blue Air Filter (30 10243) by aFe. This high flow Pro 5R air filters are constructed with 100% polyurethane on all sides and will out flow the stock paper filters for improved performance. Five layers of progressively finer cotton media provides maximum air flow. Washable and reusable for multiple cleaning cycles, the tall, open and evenly spaced filter pleats provide excellent dust holding capacity for longer service cycle between cleanings. An integrated urethane bump seal insures a tight, leak free seal over the life of the filter. The aFe filter system increased air flow over the factory air filter set increasing horsepower, torque and improving throttle response. aFe (Advanced Flow Engineering, Inc.) manufactures performance products for late model cars, light trucks and SUVs. The company was founded in 1999 with an initial concentration on high performance air filters. Since then, the company product line has broadened to include cold air intakes, fluid filters, exhaust systems, intake manifolds, intercoolers, programmers, differential covers, transmission pans and throttle body spacers. The team of engineers, machinists, production and sales people at aFe have many years of experience in their respective positions, and together work to ensure they produce the best automotive products on the market. Features: High Flow For Increased Performance Progressive 5 Layer Cotton Gauze Material Deep Cotton Pleats for Increased Flow Progressive Bump Seal For Leak Free Seal Fits In Factory Housing