Hey all, new to the forum, and a proud new owner of the 2016 Mazda CX9. In doing some research found that K&N has not made a filter for it as of yet. However, doing a cross reference based on dimensions. I found the following.


OEM filter seal measures: 8" x 9.875" (a 10" long filter would fit if need be)


OEM seal depth measures: .4375"


OEM filter depth measures: 1.875"


Numbers printed on OEM filter: "6B29" / "SH01-133A0" / "K8800"
Letters printed on OEM filter: ">PET.PP+EPDM<"


Closest K&N Filter already made:


Model # 33-3053
Fits: Toyota Auris L4-1.6L Diesel, 2015
Seal measures: 8.063" x 9.875"
Filter Depth is: 1.5"
Average cost: $ 50-51


Hope this saves someone some time if they don't want to wait for K&N to create one for the new CX9.

 

Why would someone want to put an inferior filter on a brand new CX-9?

 

Ahhh, I love these forums....always someone wanting to start some controversy or an argument. Some people would think the OEM filter is inferior and some people think a K&N filter is inferior. I say, to each his own, and try to be helpful to others. Which is the reason I posted the information. If you don't want to use a K&N, don't. If you are like me and I like the K&N filters, enjoy the helpful information.

By the way Shipo, I do give you a whole lot of credit just based on your profile photo. My grandfather flew Corsairs in the Pacific with VMF223 and is 95 years young today. Great machine.

 

The thing about K&N filters, if you go over to the BITOG web site and look at the Used Oil Analysis reports from folks who've used K&N filters and you'll see a huge increase in silicone (aka. sand) compared to folks who use an OEM style filter. You may well like them, but other folks may not be aware of how poor (or porous) a filter element the K&N company sells to the unsuspecting driving public.

Tell your dad, Semper-Fi!

 

The truth of the matter jeffreywritter, K&N makes an excellent filter for performance racing. The benefits of the filter ONLY come into play at Wide Open Throttle due to the less restricted air flow thru the filter. Less restriction means less filtration, no brainer. Even if your the most dedicated air filter person on the planet, servicing your filter every month, your still starting off with less filtration.

As you said, to each his own, but I disagree with the argument and controversy statement. Majority of people on a forum are trying to get the most out of their vehicle and K&N filters are not a life extending product for any motor. That's 40yrs experience with extensive time researching performance filters.

Have a great day.

 

Silicone is not sand.
Silica is sand.


Silicone=boob jobs
Silica=sandpaper


Just sayin. ;-)

 

Silicone Dioxide, aka. Silica

• https://en.wikipedia.org/wiki/Silicon_dioxide

 

...and at top rpms. Otherwise the throttle is doing its job of, well, throttling the air flow. At less than max rpms, there's not enough flow of air to make a difference.

And, if an aftermarket air filter offers any benefit vs. a clean stock filter. There may be other quality tests, but I know of only the Spicer test...ISO 5011 Duramax Air Filter Test Report

If anyone says that a "free flow" air filter improves gas mileage in any modern car with electronic controls and fuel injection, tell them that they don't understand how moderns systems operate.

 

I tell folks who make such ill informed claims it is impossible for a low restriction filter, or no filter at all, to improve fuel economy; they of course turn around and tell me I'm the one who doesn't understand. Oy vey.