It's a real filter:
http://www.knfilters.com/search/product.aspx?Prod=33-2413

If you're uneasy with paying a low price for it from IPMart @ $82, you can also get it off eBay for $98 ..

For total peace of mind, you can always buy from Mine's Japan and pay $300 for that filter.. that should really put you at ease

Any reason you want a K&N filter? It gives better airflow, at the expense of filtration.

If it's real, how come its from China and not from the US?
Unless they have a stockpile...

 

If you want to know it will end up on your doorstep, without having to worry about ebay or some unknown seller.

http://www.stillen.com/product.asp?id=KNFI...amp;model=GT-R#

Here is an air filtration test. K & N vs Amsoil, and a few paper filters. http://www.bobistheoilguy.com/cms/index.ph...6&Itemid=76

Either way, dirt ends up in the engine. Change the engine oil at recommended intervals.

 

Get the K&N. Trust me if it was an issue, then there would be law suits and and wed be hearing about it.

What that test doesnt tell you is the particles size. Possibly in the microns if a shitty Napa filter with all its restriction didnt even block it.

Stillen is right, what do u expect, no dirt to get through?

 

One of the reasons that authorised dealer networks exist is so that customers can confidently purchase real deal genuine products from authorised dealers.

These days it seems that many people forget this simple fact.

K&N has a dealer search page here where you can find a list of dealers listed by country ...

http://www.knfilters.com/search/dealersearch.aspx

If you want to learn about fakes and counterfeits generally, see this video documentary called "The Fake Trade", which includes some shocking examples of people making counterfeits of everything from golf clubs, to counterfeit breast cancer medication, and even counterfeit eggs - yes you read that right - fake eggs that are made from chemicals and cast in a mold....

http://www.tunersgroup.com/TunerWire_Live/...iters_doco.html

- Waenick Pty Ltd

 

They're more than likely from the US. IPmart is Malaysian, they import from US & China!!

Anyhow, I wouldnt bother with this filter, just get GTC Intake

 

What's the advantage of the GTC over the K&N?
Are you meaning filtration or flow rate superiority?

 

Actually, tothefloor.com sells them for $89 and they ship free from the USA!

http://tothefloor.com/nissan-gt-r-k-n-stoc...ilters-33-2413/