For Matrix Aluminum Cold Air Intake System (6"H Open-Top Gray Filter) XR Wagon Helps engine to draw in more and colder air; resulting in better throttle response and higher explosive horsepower output Lightweight Intake Tubing Removes Restriction From Stock Pipes High-Flow Air Filter Material Made of Micro Cotton Gauze, washable and reusable Improves filtration efficiency up to 95% Tubing made from aluminum, built For durability & strength