Not sure which 2008 Mazda CX-9 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:
"Exact replacement for my OEM air filter. I use K&N in all my cars and trucks and have noticed some increase in mileage, but the biggest factor is, I never have to buy another paper filter to keep my engines breathing "clean"." —Larry D from Trussville, AL bought a K&N Air Filters for a 2008 Mazda CX-9.
"Fit is great, serious improvement in air sound which equates to improved air flow.
highly recommend this product and autoAnything." —Douglas S from Plymouth, MN bought a K&N Air Filters for a 2008 Mazda CX-9, 3.7L V6.
"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." —Bobette B from Wildwood, MO bought a K&N Air Filters for a 2008 Mazda CX-9, 3.7L V6.
"This is at least the fourth vehicle I have installed a drop-in K&N air filter. They fit the air filter housing as good as the OEM filter, are easy to clean and maintain, and last the life of the vehicle in which they were installed. It's too early in this installation in my 2008 Mazda CX-9 to determine if there is any improvement in performance or gas mileage, but if this is anything like my past experience there certainly will not be any degradation in either due to the filter. The fact that these filters cost about three to four times as much as an original OEM filter is a little hard to take, but in the long run they are worth it." —Stanley C from Newark, OH bought a K&N Air Filters for a 2008 Mazda CX-9.