aFe POWER Magnum FLOW OE Replacement Inverted Replacement Filter (I.R.F.) with Pro DRY S Media combines the high-flow benefits of a conical filter with the convenience of a flat panel format, maximizing airflow and surface area for longer service life. This filter features a progressive 3-layer oil-free synthetic media, ideal for drivers who prioritize ease of maintenance without sacrificing performance. The precisely engineered polyurethane frame features a progressive bump seal, ensuring a perfect fit in the factory airbox and preventing filter deformation under load.