These chassis vents provide a cold air inlet and a hot air escape for cooler underhood temperatures to help maintain horsepower. They feature our new Max Flow™ 2.0 technology utilizing durable stainless steel mesh to act as a protective shield for our famous water repellent pre-filter material. The combination of these two materials incorporated into one vent provides great durability and air flow while keeping snow out. The vents also have sightless fasteners for a clean look that readily sheds snow. They are unmatched in quality, function, appearance and durability.