Review on 🔧 K&N Engine Air Filter 33-2409: High Performance, Premium, Washable Replacement Filter for 2007-2019 Nissan/Infiniti L4/V6/V8 (Sentra, Juke, Pulsar, Micra, Q50, Q60, Q70, QX70) by Nathan Skipper

I have used these K&N filters in my current and previous fx35 and now QX70S, both vehicles combined K&N filters have over 400,000 miles on them. I clean and lubricate my filters annually just to keep up with efficiency. The gas pedal is definitely faster. The performance increase is negligible. According to my dyno there is a slight increase in torque BUT THE BEST is better mileage. For me these filters were the difference between 20mpg at 65 with OEM filters and an average of 24-25mpg on the freeway at 65. At 80 cruising I still get 22-23mpg. Over the life of a car, these filters are not difficult to justify. money well spent.