21-203DK Universal DryFlow Clamp-On Air Filter: Round Tapered; 3 in (76 mm) Flange ID; 5.125 in (130 mm) Height; 6 in (152 mm) Base; 5.125 in (130 mm) Top, Red

My mechanic recommended I replace my K&N filter for this one. Should be much better for offroad dust. Initial assessment is this is a quality product and appears to allow the necessary quantity of air to my Jeep.

I ordered this to replace the oiled filter on my Nismo CAI (actually we all know the truth now: it's a re-branded AEM!) for my 2004 G35 Coupe. The AEM site does indeed have a list of all their filters, but it's a HUGE list with some subtle differences and their support wasn't very responsive when I asked to confirm the right part number for this specific application. If you want to be sure like I did: It's a perfect fit! I was excited to move to the dry-flow since it's easier to clean, comes standard on the newer G37 intakes, was co-developed with K&N (should still flow well), and the oiled filters can cause problems with our MAFs if excess oil gets pulled up through the intake. It's a little tricky to install yourself (the main reason I wanted to be extra sure it would fit before ordering), but there are a lot of G35 forum posts showing how to do it by removing your driver side fender liner...allocate an hour to remove one wheel (the extra space is worth it), pull a few clips and metric #10 bolts and you'll be glad you did -- the car sounds better and accelerates noticeably smoother. Also, in case it helps anyone... I had the CAI installed around 2009 and replaced the filter in 2012. A number of years, but I don't drive much at all... some reported replacing it after 50k+ miles. In three years I only put ~20-30k on the car (work, grocery store, occasional road trip -- I really try to save the engine). Still, the oiled filter I replaced was (in my opinion) FILTHY! I'm hoping the dry-flow filter will "shake itself off" from bumps and other road vibration more than the oiled (like I read), but still think minimally cleaning the filter every 15-30k is a good goal for those obsessed with performance. Then again, I'm pretty OCD. :-) Go for it... You won't be sorry!

Cheaper than the other stores the quality is better than the original filter better airflow

Bought it to replace the old one on my AEM short ram inlet. Easy to clean and access than oem. Frees up the inlet, I have better accelleration and slightly better mpg. Used with the Injen Heat Shield since my old filter got damaged and would heat soak from exposure from the engine/exhaust manifold radiant heat. New filter came with thinner clamp that will fit the bracket nibs on the Injen Heat Shield BTW. Older AEM filter clamp was slightly too wide.

It is a nice filter. Fits on my volvo and sounds nice.

I had installed an AEM cold air intake on my 2008 Nissan Altima 3.5 SL several years ago. That was also a Dryflow filter (though it was gray). Because you need to wait for it to dry completely before using again after a cleaning (for good reason, of course), it made the cleaning process a little inconvenient. So I wanted to pick up another filter to use while cleaning the other. I was a little skeptical because the AEM Dryflow filter that came with the intake was gray and this appeared to be red (wasn't sure if it'd be a form-fit replacement). The pipe was 3", however, so I decided to give it a shot. I'm happy to say this was indeed a perfect replacement for my current intake. Installation was of course a breeze, and throttle response is noticeable. I'll definitely be using this as the primary filter and my old one as a "backup" when cleaning this one. Highly recommended--can't go wrong here.

I'll be more rest assured that particles are getting filtered and not making it into my engine, unlike the big oiled gauze competitor. I'm sure the the value must be there somewhere, as I also paid nearly double over the competition. This filter is the perfect replacement to work with popular intakes and will deliver longer life, longer interval between cleanings, and the best filtration with reduced restriction of all other brands I've seen.

I had to find a replacement filter for the ITM foam filter in my old Conforti Cold-Air-Intake on my BMW M-Roadster. This was the closest matching size but because it is stiff, I had to disassemble the whole air intake system to get it in there and over the previous fiberglass intake tube. A considerable PITA! Seems to be just a little more restrictive air flow than before, but safer for engine longevity.