Not sure which 2001 Nissan Xterra Air Filters - Custom Fit is right for you? We have over 14143 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"Since installing my K&N air filter I have noticed an increase in gas mileage. Being an 11 year old vehicle I was skeptical that just an air filter could improve gas mileage but it has. I am getting approximately 1.5 more miles to a gallon. I also like that fact that recommended cleaning is every 50K miles. You have to purchase the cleaning kit but if you consider that you will never buy another air filter, and get better performance this is a no brainer. Buy it from AutoAnything, not K&N." —Thomas R from Colts Neck, NJ bought a K&N Air Filters for a 2001 Nissan Xterra, 3.3L V6.