Reviewed By Kevin K (Crane, MO) Reviewed for a 2015 Nissan Altima —1/23/2009 8:21 PM
This is the 5th K&N air filter I have used. In every case I have improved my gas mileage by 2 to 3 mpg even in vehicles already know for fuel efficiency. The biggest difference is in the Chevy pick ups I have owned. When you improve mileage and power on a 4.3L engine it is a great plus.