Reviewed By Philip A (TAVARES, FL) Reviewed for a 2008 Mazda CX-9 —4/30/2014 7:16 AM
It was very easy to install and only had it in for a week or so. See how the fuel milage is in a few weeks with a road trip.
Reviewed By Bobette B (Wildwood, MO) Reviewed for a 2008 Mazda CX-9 —9/19/2008 8:41 AM
I've used K&N in most of my previous sports cars and performance sedans with excellent results (particulary when paired-up with a free-flowing exhaust updgrade). Given the skyrocketing cost of fuel, I decided to try one in my wifes's '08 Mazda CX-9. To my surprise, the filter resulted in an immediate increase of 2 mpg (mixed loop), and a "seat-of-the-pants" gain in low end acceleration. The 3.7L six even seems to idle a bit quieter. At this rate, payback on the investment in the filter will arrive in 2 1/2 months.
Reviewed By Blake L (Lyndhurst, OH) Reviewed for a 2008 Chevy Trailblazer —5/19/2016 10:52 PM
Installed this on my Trailblazer SS because I've been disappointed by the gas mileage and figured perhaps she just needed to breathe a little better. First off, the install itself was straightforward and the fit was great. The filter is a little larger than what I believed to be the stock paper air filter that I threw out. So far, so good...the truck seems to be doing a little better with an average of 1mpg increase during the past two tanks of fuel. Seems to be quality for the $$$.