Make sure you get something that's actually going to filter the particles from the air. Check this out. http://mkiv.com/techarticles/filters_test/2/

I really like K&N, always was a good filter and easy to obtain.

is it true that drop in filters work better than the cone filters for the Evo X???

also, aren't the K&N and Works drop in filter the exact same thing?

Great write-up, but they're missing an important factor.

There's a reason why we went with the AEM filter as opposed to the K&N for a very important reason that will probably only rear its ugly head down the road.

I'm really suprised at the results, and who would have thought that the K&N oil actually could get through. I had a suspicion after ruining 6 Bosch 4 plugs in an old firebird after "recharging" my first K&N back in '01

I'm really suprised at the results, and who would have thought that the K&N oil actually could get through. I had a suspicion after ruining 6 Bosch 4 plugs in an old firebird after "recharging" my first K&N back in '01


Wait until you see it kill a few hotwire MAS... ;-)

I'm still debating whether to go with K&N or Apexi Cone filter. The problem with Apexi is I don't know which one I can go with. 3in = 76.2mm and i think 75mm should still fit i think. Anyone familiar with Apexi filters and know if i need a 75mm flange with it or I can just get the replacement filter? If it's the replacement filter I need, would OD 160 or 140 fit?

[p/n 500-A026] Universal Filter and 75mm Flange
[p/n 500-A022] ID 75 OD 160 Replacement Filter
[p/n 500-A024] ID 75 OD 140 Replacement Filter

http://www.apexi-usa.com/product_suction_detail.asp?id=166&pageNum=1

You guys knocking on K&N? Bastardos! lol. I never had any oil leak through the filter and had one for nearly two years on my last car. Hope you guys are wrong.

No the thing that ruins the K&N filters is when people use the recharge kit and use it wrong. I have seen it time and time again, people use to much oil. They look at the filter and see the oil hasn't covered a spot and they add more, and then they add more and more. You honestly have to use VERY LITTLE oil to oil these filters. Give the filter a few minutes to rest and let the oil soak in and around, it WILL fill in the gaps in no time.

KN > Spectre IMO

Well I wish they would test some drop ins...lotsa' of us are only going that far with intake. +It sure would be nice to have other choices besides Rally Art and Works...the 140$ miracles:mad:. Last time I checked most aftermarket drop ins were 1/2 that or less

+I knew that Blitz was a POS a long time ago + they are not cheep. Big con job there

Wait until you see it kill a few hotwire MAS... ;-)

This is actually untrue. If you go research this statement, you will find K&N did extensive testing on this theory and proved it to be false. Even over oiling the filter had no negative impact on the MAF sensor with air flows much higher then you would ever see in a car. I, like you, used to believe this, but after some careful investigation, found its not true at all.

I knew that Blitz was a POS a long time ago + they are not cheep. Big con job there

I was about to pull the trigger on the HKS one when I found those reviews. I was about to buy the worst one for my car. Thank god :bowlol: I didn't.

This is actually untrue. If you go research this statement, you will find K&N did extensive testing on this theory and proved it to be false. Even over oiling the filter had no negative impact on the MAF sensor with air flows much higher then you would ever see in a car. I, like you, used to believe this, but after some careful investigation, found its not true at all.


That's odd as I had a VW hotwire get coded and not work with a K&N.

On top of this, *MANY* people using hotwire MAFS have had this issue *OFTEN*. Not only had them fail almost back to back before they realized the issue, but also had them fail, cleaned the oil off of the MAF and have it work again.

Check out VWVortex or any other VW board since these cars use the hotwire setups and have for some time. You'll find a ton of data on this.

If it were a case of "Well, a few people think this might have caused it" I'd be inclined to believe its a case of people blaming it on something random. There's enough independent data out there at this point to make me think otherwise though.

Have to side with PDXEvo on this one...

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

and http://www.knfilters.com/news/news.aspx?ID=422

Oil does not come off K&N Filters

I've used K&N filters since 1988 with no ill effects.

I just wish i could get my stock airbox off. those 10mm bolts just spin and spin.

No the thing that ruins the K&N filters is when people use the recharge kit and use it wrong. I have seen it time and time again, people use to much oil. They look at the filter and see the oil hasn't covered a spot and they add more, and then they add more and more. You honestly have to use VERY LITTLE oil to oil these filters. Give the filter a few minutes to rest and let the oil soak in and around, it WILL fill in the gaps in no time.

I have also seen people put the filter in right after a recharge. You have to let the filter sit overnight after oiling it. I have always used them in my F-Bodys and will continue to forever.:rock:

Check out this video if you think oil comes off the filters - even over oiled ones.

http://www.knfilters.com/MAF/2MAFSensorVideo.htm

..yeah I'm not worried about the oil..even though it's tempting as hell not to soak all the apparent blank spots on the filter as your spraying it. Of course K&N is going to say the oil CAN'T EFFECT the maf and so on. That report is a bit biased since they wrote it.. but I actually believe there is some truth there.

Lesson is> just don't spray the shit out of the thing to begin with and make sure it's a nice light even coating. Do it at night and let it sit...then shake the living crap out of it in the morning

Thanks Web9 for saving me the trouble of finding that stuff ;)

This exact topic comes up often on pretty much every car forum, and is probably one of the biggest myths out there.

..yeah I'm not worried about the oil..even though it's tempting as hell not to soak all the apparent blank spots on the filter as your spraying it. Of course K&N is going to say the oil CAN'T EFFECT the maf and so on. That report is a bit biased since they wrote it.. but I actually believe there is some truth there.

I wouldn't assume that the review is biased simply because they wrote it.

While I've heard stories, I've never seen the K&N oil cover a MAF.

Maybe a tiny bit biased lol. Hey Dino did you get my PM about the MidPipe?

anyone know if K&N has a drop in filter available yet?

I don't think so. The only ones I know about are Works>140, Ralliart>$140 and HKS>40. That's it. I'm very surprised and shocked no else hasnt jumped in with a quality one for a much better price ie 75 or so. They'd sell a shitload$$ in a second

There is a K&N drop in filter and it was just reviewed by DSPORT mag. It might not be available to the public yet though.

In their testing it added 25 peak HP!

http://www.dragsport.com/issue/2008/0508_feat_article.shtml

The first component we tested on the EVO was a K&N drop-in filter element. Since K&N works closely with most of the car manufacturers, they will often receive pre-production vehicles to get a head start on research and development. K&N had its performance air filter available before the first EVO X arrived on the showroom floor. The K&N drop-in filter features a cotton-gauze filtration element sandwiched between two epoxy-coated aluminum wire screens. The cotton gauze is treated with a specially-formulated oil increasing the filtration efficiency of the air filter. The drop-in K&N filter will not void the vehicle's warranty. The filter never needs replacing and can be washed and reused. The filter is also backed by K&N's million mile limited warranty.

Excellent news...another option thank god. Maybe a call to the local K&N rep is in order to find out just when they will show up. Might be quicker online

The AMS CAI comes with a K&N cone. See my post w/ links titled AMS CAI for details. I will also review this one soon, (sorry however, I will not have dyno results for this change)

Web9: Interesting interview/testing video from K&N. I wonder if they also tested instantaneous air velocity? I would imagine a loud or large+fast displacement engine could have substantial acoustic instantaneous air flow. (A turbocharger would probably dampen this.)

any tests on the hks drop in ? i mean if it is good enough for the fq 360 it must be good ?

^

True

i would stay with the dry filter, so no oil on the surface type. Also the HKS is not really famous to make good filter. everything else is a great design and quality but i had to replace the cone on the HKS RS intake. Let too much dirt go thru.
So i think the drop in is not the best choice from HKS. I would wait a little more , and see what else is coming out in the next 2 months. :)

Apparently the new HKS drop in filter is totally redesigned from the previous gen'...I wouldn't write it off on past history alone. Robevo do you have some solid evidence about the HKS peformance we should know about? If it works good than it's quite a bargain

I called K&N this morning and was told by customer service that the X drop in is at least a couple months away:mad:. She had no real details etc, though so I think I'll call again tommorow...maybe talk to a manager

I called K&N this morning and was told by customer service that the X drop in is at least a couple months away:mad:. She had no real details etc, though so I think I'll call again tommorow...maybe talk to a manager

MooseX - You must have got the wrong person. They are already advertising the K&N drop in filter - Part #33-2392

You won't find it on the site, but the ad they run is in the current issue of Modifed.

Yeah I thought the chick was retarded...damn thanks for the part #. I'll check it out

^any update on the K&N drop in:thumbup:

Apparently the new HKS drop in filter is totally redesigned from the previous gen'...I wouldn't write it off on past history alone. Robevo do you have some solid evidence about the HKS peformance we should know about? If it works good than it's quite a bargain

I called K&N this morning and was told by customer service that the X drop in is at least a couple months away:mad:. She had no real details etc, though so I think I'll call again tommorow...maybe talk to a manager

See the problem is , i can speak only the previus versions. Since this new one not even tested yet in the real life. So i have to go my experience with the past.
So my experience/an many others/ with the racing intake set up from HKS, the HKS perform very well. Fact is, that well you need to tune the car after you install it.

Now here is the problem the cone had always so much flow, actually worked only against birds or huge bugs. :p everything was smaller than that could get it thru. /little exaggeration/ :ghey:

Now they come out new versions and the filter still wasn't good enough./for cleaning the air out/ It was an awesome flow though... :bowlol:
So i'm sorry but i highly doubt the filter is changed alot since then.
If goes to the intake set up ,i would buy ONLY HKS racing set up. BUT i will immediately change the cone for the A'pexi product. The A'pexi cone even have a funnel inside to get a smoother airflow. ANd for the 4G63 for me the HKS RS and A'pexi combo worked a best.
i would not waste my money on drop in's. that money can go some where else. You know how many guys started with drop in and then they did go further?
If you sure you will never upgrade then yes, the drop in is a good mod for basic or mild mods. But after ...

Well I'm going with the bargain HKS drop in amongst other mods with a proper tune. Everything they make is top shelf..why not the drop in? I'm goin' for that stock look so it's a drop in and no cone for now
.
I'm staying away from the inverted cone filters. And if I do happen to change my mind and go with an intake I'll be opting for a flat top filter.

I'm sure you've read this thread on MNet' about inverted cone filters on a Evo X>

http://forums.evolutionm.net/showthread.php?t=341608

anyone have a link for buying the HKS drop-in?

Rallyesport Direct. one of my favorite vendors. Utah

http://www.rallysportdirect.com/

So you would go HKS over K&N? Any particular reason why it's better?

well I'm not sure which is better but usually I'd just get a K&N and be done with it. K&N is not available and I don't know when they will be. My mods are all here or ordered and I just want to get on with my tune. Summer is NOW and I want to 'finish' my first stage and enjoy it:rock:

So you would go HKS over K&N? Any particular reason why it's better?
Apexi or K&N. I know what it said about the K&N, and I would be weary about trusting anything K&N said about their own filters after the test, but I've had good luck. I only haid one issue and it might not have been related to the K&N, but right after my first clean in my firebird I had 6 Baush 4 plugs foul up. Prolly my newby fault for buying Baush 4 and over oiling and not allowing time to dry, or maybe even unrelated, but no issues since.
Apexi would be my top choice, I'm thinking about ordering one with the adapter so I can get rid of the K&N on the end of my AMS CAI, but I'll give the K&N a chance first. I do however still wish that I had waited for the HKS pipes (CAI with BOV, the IC pipes are already available), but I would never use one of their filters.

Does anyone already have the APEXi Power Intake?

From their website, it doesn't specifically mention a part# for Evo X:

http://www.apexi-usa.com/product_suction_detail.asp?id=166&pageNum=1