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 Anthony E (Laurelton, NY) Reviewed for a 2004 Mazda 3 —1/14/2016 2:37 PM
This filter is better than the gray filter that came with the CAI which began to fall apart at the top. The old gray filter is made of rubber around the top and bottom and started to crack and break apart. The replacement is better designed with a mesh around the filter and a hard plastic like material around the top and bottom. I definitely give this my full endorsement should last much longer than the other filter.