K&N parts matching Nissan AY120NS001 air filter

The Nissan AY120NS001 air filter cross references with the K&N air filter parts below. K&N offers compatible air filters for many Nissan air filters giving you an alternative.
ProductPart NumberProduct Image 
K&N Replacement Air Filter
  • Designed to Increase Power
  • Million Mile Limited Warranty
Lucas Frommelt, Naperville, Illinois
Going into this product, I wasn't expecting a lot. But WOW! What a change. Who knew an air filter could provide such a change? I just put it into my 3.5L V6 2005 Nissan Altima, and I've noticed an increase in acceleration already. I have nothing on MPG yet, because I have just installed it. The engine has also developed this new sporty whine to it at around 4K+ RPMs. Loving this new air filter!
Waybourn Anderson, Houston Texas
Works great like my previous K&N products.
William T Whalen, Madison, Wisconsin
This is my 2nd vehicle now with a K&N air filter. This vehicle has noticeable more power on start from a stop and I have calculated a 3.1 MPG increase with no other maintenance performed on this vehicle. I received a recommendation for a K&N air filter from a friend and have also continued that practice with my friends and family. Great investment for any vehicle of any year.
33-2031-2 K&N 33-2031-2 Replacement Air Filter
List Price: $77.99
Your Price: $50.99