aFe 2020 Chevrolet Corvette C8 Track Series Carbon Fiber Cold Air Intake System With Pro 5R FiltersDual 4 Flange 360 degree radial flow air filters feature our pre oiled Pro 5R media with five layers of progressively finer cotton gauze media for maximum performance. They provide your engine with the largest amount of high flowing air, and in most cases deliver the highest power gains of our filter media options. This media is perfect for street and or track use. Their inverted tops make for more filter surface area, resulting in longer service