aFe aFe 19-22 BMW Z4 30i L4-2.0L (t) Track Series Carbon Fiber Cold Air Intake System w/ Pro 5R Filter - 57-10026R $705.00 This 7” tall 360-degree radial flow air filter features a 4” oval flange and our oiled Pro 5R media with five layers of progressively finer cotton gauze media for maximum airflow and performance. This media is best suited for street and track use. This... Add to Cart