There's really no substitute for the lifetime-reusable Infiniti QX56 custom fit air filters that we feature here at AutoAnything. These QX56 air filters combine all the best attributes. They send a super strong stream of air into your engine for maximum power and fuel efficiency. Some are designed to go for up to 100,000 miles before they need cleaning. And, if you're concerned about the environment, reusable QX66 air filters don't clog our landfills. Like all the QX56 accessories featured at AutoAnything, every air filter we sell comes with our 1-year lower price guarantee.