− Decrease quantity for Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Oval Flanged, 6.38 in. Long, 4.63 in. Wide, 6.5 in. Tall, Porsche, 911, 3.6L, 3.8L, Pair Quantity + Increase quantity for Air Filter Element, High-Flow, Oiled, Cotton Gauze, Red, Oval Flanged, 6.38 in. Long, 4.63 in. Wide, 6.5 in. Tall, Porsche, 911, 3.6L, 3.8L, Pair Add to cart