Air filters - Perth-WRX.com

stinga · #1 07-12-2006, 10:12 AM

Guys which is the preferred style of filter for a CAI - K&N cotton style vs Unifilter foam, both types are lightly oiled.
From a performance HP view point and from a cleanliess filtration view point.
Or it dun matter?
Cheers Al

Intra · #2 07-12-2006, 10:53 AM

Dont use oil.

HKS ones are unoiled if i recall.

joey89 · #3 07-12-2006, 10:55 AM

hks are also shit house for filtering

If your going to go in bay you cant go past a apexi

waxdass · #4 07-12-2006, 10:55 AM

dont use HKS, very restrictive

BALISTC · #5 07-12-2006, 10:58 AM

HKS restrictive? They dont call them "rock filters" for nothing, because thats about all they filter out!!

In the tests that I've seen, Apexi pods have consistently been found to be the best for power, with excellent filtration.

Mister Two · #6 07-12-2006, 11:01 AM

Apexi Power intake without a doubt.

Its an un-oiled paper type, yet it has the best flow and filtration of them all.

There is an article hangin around somewhere that has a test for all the major jap brand filters. Apexi came out way ahead of the others.

Intra · #7 07-12-2006, 11:05 AM

i personally use zerosports.

I dont like the idea of oil, but each to their own.

stinga · #8 07-12-2006, 11:06 AM

The CAI that comes with the FMI comes with either K&N or Unifilter so they are my choices.....

Mister Two · #9 07-12-2006, 11:06 AM

Here are the articles. extracts taken from revspeed magazine Aug 1999.

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

Basic Japanese translation into english:
http://mkiv.com/techarticles/filters_test/2/

joey89 · #10 07-12-2006, 11:10 AM

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

It speaks for itself!