It can draw more air into your engine. As a result, it improves throttle response and more horsepower. The fine mesh increases the amount of air flow, straightens the flow and stop sucking hot air from high temperature engine compartment, Washable and reusable. Gain instant horsepower (10-15 hp) by improving the filtration process. Easy Installation, replace the original air filter of car directly , Installation instructions not included.Material: Epoxy Coated Steel Mesh+Multi-Layer Cotton Gauze