This K&N cold air intake is perfect for Nissan Maxima owners from 2009 to 2023 who want to improve their car's performance. Whether you're cruising on the highway or taking your car out for a weekend drive, this intake will give you that extra power. The intake tube is made of mandrel - bent aluminum, and the filter is a washable, reusable high - flow one with oiled cotton media. Installation is quick, taking less than 90 minutes. Keep in mind, it may not be legal for use in California on pollution - controlled vehicles.