Much better then the stock cabin filter
585920
This is the correct filter for the Genesis Sedan, the catalog guide at automotive stores refer you to the coupe cabin filter which is too small.  Have replaced the filter now for it's 3rd time, probably quicker then I needed to...definitely helps to control some of the outside odors better then the stock filter and is cheaper then having it replaced by your dealership.
1705859
Got this in cabin filter for my girlfriend's 2003 Mitsuibshi Lancer ES. The item was packaged well and even came with detailed instructions that were car model specific! The only thing is, when removing the glovebox on the Lancer, you have to fiddle around with a small black piece on the rear left inner side of the glovebox. I was able to get this piece off after about one minute. After that, the rest of the installation is easy as pie. Use a box cutter to cut along the edges of the outline, and remove the plastic that you just cut out. Slide the filter in (making sure arrow is pointing down), and then use two self tapping screws to screw in the tabs from the cabin filter into the corresponding holes. No screws are supplied, so use two 5x14 self tapping screws. After this, mount the glovebox back in and you are good to go. The cabin filter does have charcoal in the element, so it is a great alternative to the OEM item which would have cost twice the amount. Very pleased with this purchase.
3883602
The thing about this filter is that it gives the engine the ability to breathe better than a standard panel filter. The main limiter of flow is NOT the filter itself, but the airbox. The fender well opening has less surface area than the tube that leads to the turbocharger. I used a 2.5" hole saw to drill two holes in the lower front of the airbox to allow greater airflow to the filter. The filter now receives air from the fender, as well as the air that is forced toward the front of the airbox by the plastic panel that covers the A/C condenser lines.

I have absolutely no increase in Intake Air Temperature, and my factory filter gauge has not moved at all. When I was running a stock panel filter, the filter gauge moved 1/3rd way down from when it was brand new.

The performance and fuel economy difference is not huge, but noticable.
57120
This product is a perfect fit for th 2006 Acura TL and the installation took about 10 minutes.  It took this long since I wanted to be very careful and take my time.  The cabin does smell fresher.  My old filter wasn't the worst I've seen after 55k miles, but it definitely needed replacing.
3278
I bought this for my Lexus SC430 and noticed the difference right away.  My old filter was dirty but not clogged but as soon as I replaced it with this one I noticed that the initial throttle response had improved dramatically. What is surprising is that Lexus decided to use such a small filter for the V8 in this car.  That makes having a clean filter all the more important.  My SC430 would rarely go above 2500 RPM with mild-moderate throttle but  now it is easily in the 2500-3000 RPM range with the same driving style and throttle response. The only reason I did not give this 5 stars was because the filter was slightly less solid than the stock filter.  Considering that it costs about 1/3 the price of the stock filter it is well worth the money!!
2819711
I had never replaced the cabin filter in our 05 Altima, so it was LONG overdue. It's a very easy install. See pic for before and after. Think it was time? Lol
3904731
Thie Fram CF8644A cabin filter fits my '01 Audi tt roadster. After running the ac for a good hour during the drive, my cabin actually smells fresher now. I would buy this product for my other Audi again.
3635256
noticed a small difference in performance right away, could feel how much better quality this filter is compared to stock
3775544
got better throttle response out of this filter with a modified air box. also got another 2 mpg on my civic.
makes my vtak go bwah
3902625
The quality of this cabin filter is very good and it fits pefectly for this application. I like this version of Mann-filter with the activated charcoal content to keep dust and pollutants out of the car, as well as helping with odors entering the cabin.
2344375
I have been using K&N air filters in my last 4 cars for many years and have always been very happy with them.  So when the original paper filter on my 2011 WRX was due for a replacement I once again went with K&N.  The install is a breeze - its a direct drop-in replacement for the OEM filter.  I am not sure about power but there is definitely a noticeable improvement in sound - every time I step on it I can hear the turbine and the intake more.  I can hear the turbine whine a little better especially when cruising on a freeway.  Above ~3,000 RPM the hissing sound of air been sucked into the engine gets progressively louder.  And when I shift at ~5,000 RPM or higher I can hear the air getting vented somewhere.  It sounds pretty cool without been too obnoxious.  When just leisurely cruising around town at lower RPMs it doesn't sound much different from the OEM filter.  And the best part is that this is the last filter I'll have to buy for my WRX.  Overall I am very happy with this filter and the price($33).
4326764
I would purchase a cabin air filter that was always OEM. But now that I have found this one for alot less than the ones from the parts store. this filter fits perfect in the frame and looks like the ones that I was buying. I will be using these everytime I change my filters.
1015809
I actually like this filter more then the screamin eagle OEM filter. the spacers are welded onto the filter as opposed to the OEM filter which requires you to carefully insert the bolts through the spacers at an angle to get it back onto the bike. I didn't have to purchase any additional parts so I 'm not sure what the previous review was talking about.  I have a 2004 883XL with the screamin' eagle stage 1 kit.  I like the filter so much, I bought two of them so I don't have any downtime while waiting for one of them to be cleaned.
4828453
I purchased this cabin air filter for my 2010 Rogue S.  The installation is not hard itself, just difficult to access.  The cabin air filter is located in the driver side wheel well, next to the accelerator/gas pedal.  You need to remove the plastic panel (it pulls right off), then access the tall, thin plastic cover for the filter, unclipping it at the bottom.  Then pull the old filter out.  Putting the new filter in requires you to "pinch" it in the middle and make it look like a bow-tie.  Then insert the filter, put the cover back on, then put the access panel back on.  Again, the installation process is very easy, it's just not an ergonomically comfortable position to get to.  This is a perfect OEM replacement and I would purchase again.
3738425
Good quality cabin filter. Works great on my 2008 RDX. Hey it takes literally 5 minutes to put it in and you don't even need a screw driver. Saves 50 bucks at least compared to what they would charge at most oil change shops.
2992129
Immediate improvement in the throttle response, another great filter from K&N
4341301
My old air filter was showing its age, so I decided to invest a few more dollars and try this over a conventional air filter. The annoying engine whistle, that my car used to make at high RPM when entering highway, is gone, and the throttle has noticeably improved that I don't need to harshly push the accelerator pedal; therefore it improved gas mileage. It's definitely a good buy for any car that needs the air filter changed.