Air filter which is better: Apexi, HKS, BLitz, K&N Sports racing,

[grnappletree14]

i was woundering which i better for performance, and which would you perfer, the apexi, hks, or blitz, and a k&n sports racing filter that looks exactly like the apexi and blitz style. lmk thanks

[mtx450]

ive always thought an air filter was an air filter?

[nissan240syan]

Go apexi, I dunno if this is true but i saw some tests with greddy, hks, apexi, and something else ......apexi came out on top

[CKAMC]

body kit racers know the difference ;)

[MrChow]

If you do a search there was something with Apexi doing really good.

AEM and K&N have really good filtering. As I said do a quick search you'll find it.

[Taniguchi_Is_#1]

better flow = less filtration. go with what ever brand you want.

[Slidin240Wayz]

Go apexi, I dunno if this is true but i saw some tests with greddy, hks, apexi, and something else ......apexi came out on top


This is very true.

Apex'I wins

[rps13sr20]

apexi all the way. test proven.

[chmercer]

the sard filter looks the coolest so go with that

i got an ebay knockoff of a blitz, it also looks pretty cool.

[Infamax]

better flow = less filtration. go with what ever brand you want.
That's false.

Here's the website with the tests that were done.
http://www.mkiv.com/techarticles/filters_test/2/

[zackt69]

I got the blitz, but only because I got a really cheap used one in Japan. If I had seen that test I probably would have gone with the Apexi.

[DOOK]

Apex'I wins every head to head comparisson, that's what I went with.

[CKAMC]

someone should test ARC...

[swayray]

i like the hks... it has a built in velocity stack... the only thing is that you really can't clean the filters and they those filters go for $20...

[TheSquidd]

better flow = less filtration. go with what ever brand you want.

Wrrroooonnnngzilla.

This only applies to barrier style air filtration, where pores in a 2d surface are go/no go pores. More holes mean more air flow, which mean less filtration.

But on a depth loading cotton filter the rules change. There are sooo many variables and attributes that contribute to the filtration and flow characteristics of a depth loading filter.

Thread size, weave density, layer count, pleating, etc etc all contribute to filtration without an inverse-linear relation to air flow. You can increase thread density, and still have unaffected airflow.

I am biased. Of course. I work for K&N. But I will tell you my bias is not just because I work here. My bias is because I see what this company does, the money it spends, the time they invest into making the filters they do.

We test our filters to a level which no other company can even compare to. I wont go into the details but I will say that we have invested more than anyone to ensure that our filters have, what WE believe to be, the best balance of flow and filtration available on the market.

I will also say that the million dollar+ equipment we use is FAR more advanced than this:

http://www.mkiv.com/techarticles/filters_test/2/filter.jpg

We have scientifically measured and calculated particle sizes.
We have industry standard air flow testing.
We use a computer controlled system, no human hands dropping dirt onto a material.
We have a climate controlled clean room, no some guys garage.

This is no vaccum cleaner.

http://knfilters.com/images/isotesting.jpg

And is only one of MANY standardized machines we use in our testing.

The reason I would use K&N, trust.

Do our filters filter well enough? They've been tested to extremes I doubt any other filter has.

We had a guy last year that put 1,000,000 miles on his Chevy Silverado truck, and 1,000,000 miles on his K&N panel air filter. He cleaned the filter 11 times, about once every 90-100,000 miles. He is a parts delivery driver in Louisiana, near New Orleans. He drives over dirt roads constantly, and is always surrounded by dirty and dusty farms.

He NEVER had to replace, or fix, ANYTHING in the motor AFTER the air filter. A v8 Chevrolet truck, the butt of MANY jokes about American reliability. This motor is STILL running, we gave the guy a brand new Chevrolet truck in exchange for taking his truck for testing. The car runs like new, after 1,100,000 miles!

video (http://www.youtube.com/watch?v=X0_4jByZmSM)

Example 2. A few years back we sponsored a drive around the world expedition. A band of Land Rovers drove from San Francisco, to the bottom tip of South America, took a boat to Australia, drove across Australia, boat to Asia, drove all over Asia, over the highest motor able road in the world, through the arctic wastelands, down Alaska, all the way back down to San Francisco.

They never cleaned the filter.

When we got the filter back from the land rovers, they were the dirtiest filters we'd ever seen. Bugs about 6" wide covered the material. The dirt was so thick you couldn't even see the wire mesh. Yet the backs of the filters were so clean you could eat off them. These filters STILL outflowed OE paper filters 30%.

blah blah blah I could sales pitch all day, basically all I'm saying is this :

CLIFFNOTES:

K&N puts more research into air filters than anyone. They spend millions to find the perfect (in our opinion) balance between airflow and air filtration. We use testing equipment that is FAR more advanced than a vaccum and some t issue paper. We go so far as to test the filters of our competitors.

Some filters out filter us (usually particles that are too small to affect any motor anyway) and few out flow us.

Apexi wins a filtration test that follows NO test standards. The data is virtually useless.

[LA_phantom_240]

Go apexi, I dunno if this is true but i saw some tests with greddy, hks, apexi, and something else ......apexi came out on top

Yeah. It was on an MKIV supra forum. Lemme see if I can dig it up.

I hear the new AEM filter is pretty good.

EDIT: LOL I didn't see that someone else already had the link. Good job, mang.

[TheSquidd]

I hear the new AEM filter is pretty good.

If you like high air restriction and crappy dust capacity.

[kandyflip445]

I like my K&N. lol

[TheSquidd]

As a side note, I should say a K&N air filter is designed to have 96-99% dust filtration. We have tested OEM filters from NEW cars that filter around 90-93%.

Seriously, if you guys need to know even more reasons to buy a K&N let me know because I could tell you a shit load more.

[2iv0 sx]

I also thought an air filter is just an air filter...

Thanks for the info Squidd.. I'm getting a K&N drop in filter for my intake =D wanna hook me up with one Squidd?

[A Spec Products]

I use A Spec filters

They give me at least 50 hp

And I break necks at car shows

Girls pretty much throw their panties at me

[kandyflip445]

I'm on my second K&N filter. The dumb eBay intake I bought woudn't hold up and the filter was rubbing on the chassis...so when my car was running stupid I found there was a hole in the filter. Not K&N's fault but I bought a new one and it's been good.

That filter with the hole had sooooo many more miles left on it if it weren't for the damn hole. The filter media when cleaned and re-oiled looked as good as the new one. Damn eBay intakes. lol

[240heaven]

^^^ROFL at Logan...where's the PROOF!!!

[A Spec Products]

^^^ROFL at Logan...where's the PROOF!!!

Um....

Uh......

OH CRAP YA CAUGHT ME

Liar!!!!

But on a serious note, my personal feeling is that as long as the filter filters out particles and keeps major debris from getting sucked in your motor its doing fine. But yeah if I had to actually buy another brand I'd probably go with K&N. I don't like oiled air filters though, that irritates me. I like dry filters.

They actually got the track records to prove it. And probably more panties than me.

[FRpilot]

that old test on the supra was only done with the big four jdm companies (hks, greddy, blitz, apex)...

there are other alternatives out there today such as aem, k&n, etc. i dont know much about these other filters, but i do know that some k&n filters are pretty good and offers a carb sticker. the sticker was one of the reasons why one of my friend bought a k&n filter for his car despite the fact that it cost 5x as much as an ebay filter.

some may says a filter is a filter like a strut bar is a strut bar. andrew bohan told me its just a filter and runs some ebay filter. i sprung for apex filter a while ago. if money is of concern, get any filter, but if you can afford a better engineered filter go get apex or k&n.

[2iv0 sx]

Isn't there a K&N cone filter that replaces the stock drop in filter?

[statRacing]

i was woundering which i better for performance, and which would you perfer, the apexi, hks, or blitz, and a k&n sports racing filter that looks exactly like the apexi and blitz style. lmk thanks

Check out this link: http://mkiv.com/techarticles/filters_test/2/ :bigok:

Here's one more: http://www.mitsubishi-fto.net/performance/intakes/

[viscid240]

CSK Auto universal with adapters. I would go with the apex'i though.

[Irukandji]

K&n .

[Ragnarok043]

someone should test ARC...

ditto, id like to see if there are noticeable gains with the ARC induction box considering the high price tag.

[LA_phantom_240]

that old test on the supra was only done with the big four jdm companies (hks, greddy, blitz, apex)...

there are other alternatives out there today such as aem, k&n, etc. i dont know much about these other filters, but i do know that some k&n filters are pretty good and offers a carb sticker. the sticker was one of the reasons why one of my friend bought a k&n filter for his car despite the fact that it cost 5x as much as an ebay filter.

some may says a filter is a filter like a strut bar is a strut bar. andrew bohan told me its just a filter and runs some ebay filter. i sprung for apex filter a while ago. if money is of concern, get any filter, but if you can afford a better engineered filter go get apex or k&n.

Not to be a smartass, but wasnt the K&N tested in the supra thread?

[Vision Garage]

Woudlnt sometimes the simpliest test the most convincing? I got Apexi!

[Matej]

Just put pantyhose on the end of the pipe.

[SexPanda]

As long as it filters the air, I'd be happy. But then you have to think, the power difference between K&N and Apexi and all those others has to be nominal. Competition means that each company is trying to outdo the other, which means they're all more or less just as good as eachother.

[IIIXziuR]

Just put pantyhose on the end of the pipe.

That's classy hahaha. Preferably pre-worn...

[scarecrow27]

apex'i is pretty good i wanna try the one from blitz that is supposed to increase velocity and help keep if from suckin up the hot engine air

http://www.blitz-performance.com/index.php?main_page=index&cPath=2

[bigOdom1]

for an intake that price is obsurd, forget it

[D1champ]

I had a KN replacement drop-in filter and it blew the MAF on my 1.8L sentra. Maybe it's ok on older Nissans but anything after 2000 I would stick to OEM Nissan and nothing else. My old man used a "jobber" OE type replacement filter and blew the MAF on his 2000 Maxima aswell.

I got lucky to find a used replacement because up here in Canada, those MAFs cost hundreds of dollars.

[MrChow]

ditto, id like to see if there are noticeable gains with the ARC induction box considering the high price tag.
I would like to see one too. ARC intake look really kool. It looks like it does a small icebox effected like on s2k huge intake boxes they have in the aftermarket stuff.

[tangch]

I think dry filter is better right, so it won't mess up the maf. Looks like apexi do a very good job at it. correct me if i am wrong.
Anyways, does anyone here have the arc air box, i think that is the best looking one ever

[LB.Motoring]

You pay for what you get.


Id say pantie hose ftw.

[nrg]

the metal mesh blitz filter is junk. the blitzLM is ok. the HKS mushroom filter is junk too. I'm running a M's power K&N filter on my car and it's ok. the oil on the filter has killed one of my maf sensor.

I'd go with apex-i filter. it's a dry filter and it wont kill MAF.

i believe the velocity style intakes are a gimmick. the vortex of the flow is useless after it hits the turbo and intercooler.

velocity stacks are great for NA tho.

[TheSquidd]

I'd go with apex-i filter. it's a dry filter and it wont kill MAF.


Phi, tsk tsk tsk, come on dawg.

This is why the internet is laaaaame. Rumor mills.

Oiled filters do NOT cause MAF failure. PERIOD.

http://www.knfilters.com/MAF/massair.htm

We've done extensive testing of this, it just DOESN'T happen. If someone says your MAF is contaminated or ruined because of an oiled filter THEY'RE LYING.

We've tested over 100 MAF's from customers that had their dealers or mechanics say that K&N ruined the MAF, none of them had any K&N oil material ANYWHERE. We had criminal forensic investigators (like people who examine DNA for murders) search for the presence of our oil and none was found.

(I did most of the cinematography and CG animation in those videos ^_^)

[MrChow]

You pay for what you get.


Id say pantie hose ftw.
Or there is the white boy crx special. A tube sock and tuck tape.
No joke this kid had a tube sock and tuck tape as his intake on his crx thing... :loco: White boys and there crx's....

[nrg]

Phi, tsk tsk tsk, come on dawg.

This is why the internet is laaaaame. Rumor mills.

Oiled filters do NOT cause MAF failure. PERIOD.

http://www.knfilters.com/MAF/massair.htm

We've done extensive testing of this, it just DOESN'T happen. If someone says your MAF is contaminated or ruined because of an oiled filter THEY'RE LYING.

We've tested over 100 MAF's from customers that had their dealers or mechanics say that K&N ruined the MAF, none of them had any K&N oil material ANYWHERE. We had criminal forensic investigators (like people who examine DNA for murders) search for the presence of our oil and none was found.

(I did most of the cinematography and CG animation in those videos ^_^)


Something killed my MAF =(
It was right after I reoiled the filter too. hah

[mRclARK1]

My vote is for Apexi or K&N... I've used both, and loved them both.

[cdlong]

Something killed my MAF =(
It was right after I reoiled the filter too. hah

maybe it just broke. post hoc, ergo propter hoc (http://en.wikipedia.org/wiki/Post_hoc_ergo_propter_hoc).

Phi, tsk tsk tsk, come on dawg.

This is why the internet is laaaaame. Rumor mills.

Oiled filters do NOT cause MAF failure. PERIOD.

http://www.knfilters.com/MAF/massair.htm

We've done extensive testing of this, it just DOESN'T happen. If someone says your MAF is contaminated or ruined because of an oiled filter THEY'RE LYING.

We've tested over 100 MAF's from customers that had their dealers or mechanics say that K&N ruined the MAF, none of them had any K&N oil material ANYWHERE. We had criminal forensic investigators (like people who examine DNA for murders) search for the presence of our oil and none was found.

(I did most of the cinematography and CG animation in those videos ^_^)

those are good test procedures, that instills a lot more confidence in K&N. though i'd like to see you guys go mythbusters style on a maf and keep going until it breaks.

[itsmeviet]

Just put pantyhose on the end of the pipe.

i know someone who used one and sucked it into his turbo :sadwavey:

[TheSquidd]

those are good test procedures, that instills a lot more confidence in K&N. though i'd like to see you guys go mythbusters style on a maf and keep going until it breaks.


That is a GREAT idea, and we intend to remake those videos (WAY too long). I might have to steal that Mythbusters idea. We did try to break them, I don't know if you saw but we completely submerged one in a cup of oil and it ran PERFECT. They're actually incredibly durable sensors.

[LB.Motoring]

^ If you didnt notice,

This man Works at K&N

he knows his shit.

[BLiTz]

Does K&N make a kit for SR20DET? On the website i see skyline but no silvia, whatsup man you might have sold me on your pitch but how can i buy one for my S14 SR?

[cdlong]

That is a GREAT idea, and we intend to remake those videos (WAY too long). I might have to steal that Mythbusters idea. We did try to break them, I don't know if you saw but we completely submerged one in a cup of oil and it ran PERFECT. They're actually incredibly durable sensors.

yeah, i saw that. i don't know how to do it, but it may involve rocks, fire, or buster the crash test dummy in some way. are there certain models that you see more often? that might be a good place to start.

one thought about that part of the video, the way the sensor you used was set up, you could have dunked the entire thing in oil and still not got any on the sensor because of an air pocket (like putting an upside down cup underwater. i assume this wasn't a problem, but it might be more clear if you pour oil into the sensor.

[TheSquidd]

yeah, i saw that. i don't know how to do it, but it may involve rocks, fire, or buster the crash test dummy in some way. are there certain models that you see more often? that might be a good place to start.

one thought about that part of the video, the way the sensor you used was set up, you could have dunked the entire thing in oil and still not got any on the sensor because of an air pocket (like putting an upside down cup underwater. i assume this wasn't a problem, but it might be more clear if you pour oil into the sensor.

The video footage of us dunking it was a studio shot, the way they did it in the lab was much less "pretty" but there were no air pockets of any sort, they even looked under a 500x magnification microscope to look at the sensor before testing it, it was completely covered in oil.

And if I'm not mistaken...

http://www.knfilters.com/search/product.aspx?Prod=57-6000

Wouldn't that work on an SR20? CARB legal ^_^

[sicarius82]

i know someone who used one and sucked it into his turbo :sadwavey:

geee.... i wonder who did that? what an r-tard... :wtf:

[SINxSELEKTAH]

go with a brand that DOES NOT have cheap paper and DOES NOT use oil to "clean" it with (K&N). btw...how much does a new MAF cost for a nissan?

[!Zar!]

go with a brand that DOES NOT have cheap paper and DOES NOT use oil to "clean" it with (K&N). btw...how much does a new MAF cost for a nissan?

Did you miss everything posted in this thread?

[SINxSELEKTAH]

Did you miss everything posted in this thread?

pretty much.....TL;DR :D

[FusionR240sx]

That's classy hahaha. Preferably pre-worn...

yea cuz those are da cleanezt!

[TheSquidd]

go with a brand that DOES NOT have cheap paper and DOES NOT use oil to "clean" it with (K&N). btw...how much does a new MAF cost for a nissan?

:loco:

FUCKMESSAGELENGTHS

[charmersfh]

K&N filters all the way..

[ixfxi]

the metal mesh blitz filter is junk. the blitzLM is ok. the HKS mushroom filter is junk too. I'm running a M's power K&N filter on my car and it's ok. the oil on the filter has killed one of my maf sensor.I'd go with apex-i filter. it's a dry filter and it wont kill MAF.

you're such a fan boy. tool.


Phi, tsk tsk tsk, come on dawg.
This is why the internet is laaaaame. Rumor mills.
Oiled filters do NOT cause MAF failure. PERIOD.

Wow. Sky_lar works for K&N, respect.

I've used K&N style filters for YEARS, never ever had a problem with oil/maf - its complete bullshit, a rumor.

[BattleRoyale]

young version or option did a test of those filters a couple years ago and the apex-1 one came out on top with flow and the amount of debris it filtered

[98koukile]

I have AEM right now and it does the job but if I ever go turbo I'll get k&n or apexi.
So... when do you think k&n will stop needing to buy million dollar top of the line testing units and cut us a break on the damn filters?

[cdlong]

if you want cheap crap with no quality or testing to back it up, i thingk APC has a line of filters.

[TheSquidd]

I have AEM right now and it does the job but if I ever go turbo I'll get k&n or apexi.
So... when do you think k&n will stop needing to buy million dollar top of the line testing units and cut us a break on the damn filters?

:keke:

I ask them that all the time. We're exploring avenues, no trade secrets to be told here though =P

[jkeisser]

There were tests done to see which get most air flow..
but IMO, they're basically the same thing..

Only thing is, HKS has replaceable filter elements.

That has to be the only 'special' thing about it.. other than that, I dont think theres a huge difference!

I use stock K&N drop in.. didnt feel a difference at all!

[ixfxi]

I use stock K&N drop in.. didnt feel a difference at all!

nor will you. the stock drop in sucks.

the only benefit IVE ever found in filter changes, is when i compare a stock intake setup versus an less restrictive pipe/filter setup.

between cone filters, i notice nothing. even with no filter, i dont notice a big difference. the major difference is when you ditch the OE setup because its restrictive in order to cut down intake NOISE, period.

for the OE, its not a matter of performance.. its a matter of reliability (in terms of filtration) and quietness.

[CKAMC]

btw...how much does a new MAF cost for a nissan?

List price is $500 for a Z32 and the best price I have seen is $375.

We are talking new not used price.

[TheSquidd]

nor will you. the stock drop in sucks.

the only benefit IVE ever found in filter changes, is when i compare a stock intake setup versus an less restrictive pipe/filter setup.

between cone filters, i notice nothing. even with no filter, i dont notice a big difference. the major difference is when you ditch the OE setup because its restrictive in order to cut down intake NOISE, period.

for the OE, its not a matter of performance.. its a matter of reliability (in terms of filtration) and quietness.

Well, for once we agree. Hahaha.

Yes panel filters are good if you're sick of replacing filters every 15k, and if you don't want to experience linear restriction increase over time. If you want power. Get an intake kit, or a TURBO.

But I really don't think an intake kit does too much on a 240sx, the old school stock air box isn't all that restrictive compared to the crazy horse shit OE's are coming out with these days.

[S14DB]

Can you still light K&N's on fire?

[TheSquidd]

BWHAHA You saw that??

OMFG K&N filters ignite at 1500 degrees! If your car is experiencing temperatures like that you have much bigger problems.

It's the ultimate form of flattery when your competitors have to make BS claims to try and steal business from you.

[Koopa Troopa]

I'm a fan of my tea strainer.

[Teambadrun]

Wasn't there a test saying apexi was the best?

[TheSquidd]

Wasn't there a test saying apexi was the best?

lol I LOVE Zilvia.

:goyou:

[Teambadrun]

lol I LOVE Zilvia.

:goyou:

I use one on my car, running over 450hp at the crank ( genuine HP, not bs figures) and it is not a restriction, YET.. its only on 15psi BUT the turbochargers intake is like new.. so i will just stick with apexi's latest one, the cone shaped thingy!

In the end, I dont care, just saying what ive experianced :)

[TheSquidd]

I use one on my car, running over 450hp at the crank ( genuine HP, not bs figures) and it is not a restriction, YET.. its only on 15psi BUT the turbochargers intake is like new.. so i will just stick with apexi's latest one, the cone shaped thingy!

In the end, I dont care, just saying what ive experianced :)

That's cool. Like most have said, air filters are not a DIVERSE market.

Most cotton filters are alike (because they all steal our tech! ASSHOLES! JK).

Foam sucks, falls apart, filter retention sucks, basically everything sucks about foam.

Paper sucks. Filters good but the instant dirt hits it, it's restriction rises. Has to be replaced.

Synthetic sucks. It's only REAL advantage is you don't have to oil it, but the reasoning behind that is all lies anyway.

All I'm saying is the BEST technology IMHO is oiled cotton gauze filters, and all I'm saying is the BEST oiled cotton gauze filter is IMHO K&N. You can buy something else and not have your engine ASPLODE, but if you want the best, I think you can't miss with K&N.

[cdlong]

well put, now can we lock this thread? it has outlived its usefulness as teambadrun has shown.

Wasn't there a test saying apexi was the best?

[sideview_180sx]

K&N hands down.......... why........ they sponsor a damn craftsman truck. I don't another air filtration company doing that. hehe, plus you gotta admit, who has been in the game longer then them. seriously million mile filters (I wouldn't try it, but seriously thats a hell of a marketing statement to make)