HKS: $34 (poly)
K&N: $52 (paper)

Census. Which do you prefer for a stock replacement filter.

 

K&N (which is not paper, btw- its cotton)

 

and I've never seen an HKS drop in...

 

They do make them. They will disintegrate over time.

K&N

 

Duhhh.....cotton. My bad.

 

Funny thing..... I had the old school ITG intake for my T2. It did not disintegrate after 3+ years of use. I cleaned it periodically and it still looked new. I always checked the inner layer for any type of disintegration, none.

The person that now owns the car still has it. If you keep the filter clean and use the proper oil, it will last a long time

 

The HKS filters are disposable like a paper element, while the K&N filters last 10 years or 1,000,000 miles when cleaned and re-oiled with the service kit. Here is your new balance sheet:

$52 K&N filter + $9 K&N filter service kit = $61 for 120 months or 1,000,000 miles

$34 HKS filter @ 1 filter per 30 months / 30,000 miles (assuming it lasts as long as the OEM filter) = $136 for 120 months or $1,122 for 1,000,000 miles

I guess the HKS filter wouldn't be too bad if you didn't drive very much, LOL.

http://www.hksusa.com/products/?id=812

 

The hks filter is a very good filter as is k&n but if you want the best get an apexi filter... they are like a k&n but a (wet-type filter where a k&n is a dry-type) they are the best...the tests proove it.... (oh yeah someone may want to correct me on the wet and dry types i may have them switched around but still the apexi filter is the better of the two) -Gabe

 

whats up with you and this apex crap. do you all of a sudden have a apex sponsorded 7 or something? personally i think the k,n is better. he is talking about factory drop in!!

 

drop in=k&n
cone=apexi

apexi makes very good stuff, and generally at a higher price. fortunately their filters are reasonable and in an independent test, tied the k&n in filtration but had 2 hp extra or something there of. can't remember the link but i believe it was a british test on a r33 skyline. both are really good.

 

K&N all the way!

 

Im talking about how much **** it kept out of going into the engine and it doesnt have to be apexi but they are about the only company that makes wet type filters

Also get rid of the stock airbox that is one of the most restrictive airboxes around....ive just looked for 30 minutes about this test that was conducted on the airflow of the stock airbox and guess what the rx-7 placed last out of 7 cars all sport compact cars...

 

wheres the link at... Please..

 

Rotorific, not to be rude or anything, but this post IS about drop-in filters. I'm sure everyone here except the newbies (some) know that the stock box is restrictive and a cone filter is "better". I'm sure jmseven is asking for a reason, hopefully everyone remembers that.

BTW I haven't tried the HKS filter, but I do know that the K&N is an awesome filter.

 

http://www.gtrowner.com/induction.html

Just one example. I can probably point you to 5 others that say the exact opposite. I'm not saying that it's wrong just that you should always take information you get off the internet with a grain of salt (at least).

W

 

for example:

http://www.ftooc.org/newsite/content...ect/filter.htm

 

KIYO yes i totally understand that and in that case then i would go with K&N
i just wanted to respond to detiruchs comment and recommend the loosing of the airbox and not waste money on a drop in filter...but to each his own in what they want...

 

You know......I'm going to consider going back to an ITG filter. Something so well made...gets another chance.

Thanks WHEELS for those test links.

 

Exactly, drop-in filters are a waste of time, because it's not the filter that's restrictive, it's the box. This is true even for good factory airboxes. If you really have to keep the box, just use the Mazda paper filter and save some dollars.

 

The K&N is wet, the Apexi is dry. I don't consider a couple of internet teenagers with a vacuum cleaner bag to be the world authority for automotive testing and standards. I would like to see how the Apexi performed on the SAE J726 test.

In the case of an otherwise stock non-turbo car, there is no noticeable gain in going from a drop-in filter to a cone filter. Also, some people like to keep their cars looking stock, and/or don't like the added noise of the cone filter.

LOL, the whole reason I went to a K&N was to save money. At the time (1988) Mazda was charging $36 for a paper element good for about 30,000 miles. The drop-in K&N filter was $38, and good for 10 years / 1,000,000 miles. It doesn't take a genius to figure out which is a better deal. I'm sure that the prices have changed by now, but I'm already sold on the K&N filters.