K&N 33-2128 Replacement Air Filter A high-flow, washable filter that delivers the maximum amount of air possible into your engine while providing superior filtering Multiple layers of cotton fabric sandwiched between pleated aluminum screen capture airborne dirt particles Improves horsepower and torque Emission legal in all 50 states, will not void manufacturer's warranty Filters can be cleaned over and over, and are backed by a million mile limited warranty In some cases, product pictures may not represent the product being sold. If in doubt, please contact a GlobalIntersection Customer Service Representative. Also, please ensure compliance with local laws and regulations when purchasing performance automotive products. K&N's lifetime replacement air filters are designed to increase horsepower and acceleration while providing excellent filtration. The air filter is custom-designed to fit into your existing factory air box and the drop-in design means adding performance is simple. The unique design of the air filter features multiple layers of cotton fabric which capture airborne dirt particles. The filter is washable and reusable and can be easily cleaned and oiled. It lasts up to 50,000 miles before cleaning is needed.