Reviewed By Doug M (THE WOODLANDS, TX) Reviewed for a 2004 Jeep Wrangler —8/26/2012 2:27 PM
I'vr been using K&N air filters for a long time, along with several other K&N products. In my opinion they are of the highest quality and relatively easy to clean, once dirty. On the average, I do mine every 35,000 - 40,000 miles. Besides, using the best doesn't cost that much more -- on my four cars.