Good aftermarket air filter?

Post by **Yorb** » Fri Sep 10, 2004 11:21 am

I have a pretty much stock KA s13 with a many months old air filter. should I just buy the replacement filter for the box, or get something like a K&N FIPK or whatever, or a full-blown intake (AEM)?

chances are i won't upgrade the exhaust in the next year or 2.

thanks for your thoughts. ^_^

Post by **AZhitman** » Fri Sep 10, 2004 11:31 am

OEM Nissan is good stuff.

If you want, go with K&N drop-in.

Post by **Chingon** » Fri Sep 10, 2004 12:41 pm

nothing beats APEX'i

Post by **Doomed2Walk** » Fri Sep 10, 2004 12:48 pm

Yeah, someone had an article about testing K&N, Apex'i, Blitz and HKS, Apex'i filtered out the most dirt and added the most power. That's why I got the Apex'i intake.

Post by **Yorb** » Fri Sep 10, 2004 9:17 pm

hmmm apex'i sounds good to me. is it the Z32 one that fits s13s, or is there a separate one?

Post by **Nismo_Freak** » Fri Sep 10, 2004 9:53 pm

Yorb wrote:hmmm apex'i sounds good to me. is it the Z32 one that fits s13s, or is there a separate one?

Seperate.

Post by **MainEvent212** » Sat Sep 11, 2004 5:32 am

yeah the apexi filter is supposed to be the best one, and it's very compact and a DRY filter too (k&n uses oil for lubrication and it poops on your MAFS if i do remember correctly )

i plan to replace my K&N very soon, since i got it w/ the swap...soon as i save for the apexi filter

Post by **Yorb** » Sat Sep 11, 2004 7:04 am

apexi's website only has the s14 one....is it the same? =/

Post by **240SX_S13** » Sat Sep 11, 2004 7:22 am

the HKS Super Mega Flow Kit is the best design. It has massive air flow to ur manifold do to its round design:

It also offers multi-air filtration:

Price is about $175 u can find it @ http://www.hksusa.com/

Post by **180fan** » Sat Sep 11, 2004 8:51 am

http://mkiv.com/techarticles/filters_test/1/

that's older stuff from a Revspeed magazine.

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

that's their newer testing. I still don't see a greddy filter though in the testing. I wonder how those will do in the line up.

Post by **240SX_S13** » Sat Sep 11, 2004 9:01 am

I never saw that test b4. thanx 180fan

Post by **Yorb** » Sat Sep 11, 2004 9:40 am

so, after some searching, i don't think apex'i makes an s13 filter. at least not for a KA engine. shame. what was the K&N one someone recommended?

Post by **240SX_S13** » Sat Sep 11, 2004 9:43 am

u can always fabricate an APEXi filter. If u go to http://www.apexi-usa.com/ they make it for the 95-98 240SX am pretty sure u can make it fit

Post by **Yorb** » Sat Sep 11, 2004 9:47 am

what? =/ fabricate means create. if i were to create my own filter, it wouldnt be apexi, would it? your logic escapes me ;D

Post by **240SX_S13** » Sat Sep 11, 2004 9:49 am

i mean costumize sorry wrong usage of the word. But if u go to http://www.apexi-usa.com/ they make it for the 95-98 240SX am pretty sure u can make it fit.

Post by **Yorb** » Sat Sep 11, 2004 10:05 am

yeah i noticed that they make it for s14s (95-98). anybody else have any ideas on "making it fit"? resellers generally say that this filter is for the sr20det ONLY. wouldnt i be better off going with either a K&N performance kit or a drop-in like AZ originally suggested?

Post by **180fan** » Sat Sep 11, 2004 11:06 am

my apexi for the sr fit my sohc mafs and my sr mafs, just look for the kit.

Post by **Yorb** » Sat Sep 11, 2004 11:41 am

thanks 180. the kit? you mean the sr20 apexi filter? or is there something else too.

Post by **JDM** » Sat Sep 11, 2004 12:03 pm

I have J-Spec Tuners old K&N drop in filter. He has a S13 and I have an S14. It fits perfectly. It granted a marginal increase in throttle response and power (just enough to notice).

Post by **Nismo_Freak** » Sat Sep 11, 2004 1:28 pm

Yorb wrote:yeah i noticed that they make it for s14s (95-98). anybody else have any ideas on "making it fit"? resellers generally say that this filter is for the sr20det ONLY. wouldnt i be better off going with either a K&N performance kit or a drop-in like AZ originally suggested?

Chet (Exar-Kun) has one on his S13 KA24DE engine... might wanna drop him a line.

Post by **StreetDreamin** » Sat Sep 11, 2004 2:27 pm

I'm not sure how it compares it the other intakes, but I'm running on the Injen intake for a KA24E. I feel solid gains and the intake fit well.

Post by **240SX_S13** » Sat Sep 11, 2004 2:40 pm

hey check this out i was clicking on the links on the site. I found an APEXi air intake

http://www.splparts.com/

Post by **MainEvent212** » Sat Sep 11, 2004 6:03 pm

they mean it's the filter adapter kit bro...dont worry about it, it seem like u have lots to learn

yeah, lots of places sell the Apexi filter. and you can just make it fit...as long as the filter is the right size and the adapter plate fits it dosent really matter if it says "KA24(D)E" for the "kit"...i definately suggest teh apexi filter-kit though...supposedly yeilds highest gains, it's a dry design...no pooping on your MAFS, and it looks cool in person (despite what you might think, that HKS suction kit looks so lame in person)

Post by **Nismo_Freak** » Sat Sep 11, 2004 6:36 pm

240SX_S13 wrote:hey check this out i was clicking on the links on the site. I found an APEXi air intake

http://www.splparts.com/

Good to know our advertising works lol.

I work for SPL

We don't currently have anything in stock that will fit your application. Sorry chief.

Post by **180fan** » Sat Sep 11, 2004 8:23 pm

Oh by kit I meant the filter with the thing that attaches to the bottom of the filter and connects to the mafs. That's all I got and works pretty good. If you're tight for cash, just check out ebay for those mafs adapter things and look for a k&n filter that has that same sized opening. If it makes your search any easier, the MR2 turbo uses the same size apexi intake as the 240.

Post by **Onizuka** » Sat Sep 11, 2004 8:44 pm

Spending more than $50 total for intake on a natually aspirated KA is a waste of money. All it will really do is make more noise and maybe a total gain of around 1 hp. Unlike other old imports, the stock equipment flows very well for the KA24's NA needs (big throttle body, big inake pipe, big filter, all come stock).

Of course this is my opinion, if you want to throw down $200+ for something shiny, go ahead.

If you want to get cost efficiant, just do a K&N drop in and take out the plastic box behind the fender lining on the drivers side. Low and behold, you will find a hole that goes right into the air filter box that draws ambient-temprature air from outside the engine bay.

Heck, my cars turbo and all I have is a $25 generic cone filter+adapter and $3 worth of 2-inch PVC tubing from home depot. Let me tell you, it is the most cost effective mod I have EVER done.

Post by **Nameless EJ6** » Sun Sep 12, 2004 8:09 pm

Chingon wrote:nothing beats APEX'i

Yup. Apexi has pretty much the best filter on the market. I remember seeing a large test of them a while back and apexi was #1. I'll be going with two of them on the 26.

Foam filters suck.
Modified by Nameless EJ6 at 8:29 AM 9/13/2004

Post by **Yorb** » Mon Sep 13, 2004 7:01 am

i talked to chet, the guy that put an apexi on his s13. apparently he had to get an aluminum adapter custom fabricated at a machine shop.

sounds like more effort than i want to spend on this, especially since my engine is NA and i have stock headers and exhaust. =/

final thoughts anyone? AEM intake: $150, injen intake: $200, k&n fipk: $125.

Post by **JDM** » Mon Sep 13, 2004 7:49 am

K&N drop in filter = $45 new

I got mine used for $20.

If your not going to be doing too many modifications a drop in will proboly be the best bang for the buck.

Post by **Yorb** » Mon Sep 13, 2004 9:55 am

okay, well i went with the drop-in. $45, sheesh. but thanks for talking sense into me, i really don't need to be spending a bunch of money on this. ;D

by the way, jspec - what do you mean by take out the plastic box behind the fender lining? how do i get to it?
Modified by Yorb at 4:13 PM 9/13/2004

Good aftermarket air filter?

Good aftermarket air filter?

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