Welcome to the North American Subaru Impreza Owners Club Saturday July 30, 2016
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Go Back   NASIOC > NASIOC Technical > Normally Aspirated Powertrain

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads. 
Reply
 
Thread Tools Display Modes
Old 06-08-2003, 10:40 PM   #1
mike270
Scooby Specialist
 
Member#: 12863
Join Date: Nov 2001
Chapter/Region: MWSOC
Vehicle:
2002 2.5RS

Default Rate air filters for filtering....

I asked a question similar to this a little while back but didn't get much response so here goes...

On a scale of 1 to 10 with 10 being a stock air filter, 5 being descent protection but will eventually cause problems in your engine and 1 being no air filter where would you rate aftermarked air filters?? (K&N and Amsoil specifically) Also explain why you say what you say.....experience, opinion, etc.

Thanks a lot for the help
* Registered users of the site do not see these ads.
mike270 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 06-09-2003, 09:39 AM   #2
BOY
NASIOC Supporter
 
Member#: 232
Join Date: Sep 1999
Chapter/Region: MWSOC
Location: Ft Wayne, IN
Vehicle:
99 RS-T RIP
02 Forster-S

Default

I won't get brand specific but I'll give you a run down on filter types:
  • Paper (stock, OE replacement type): Filters great, flows terribly
  • Cotton gauze (K&N, etc): Filters great when oiled properly flows well
  • Foam (Amsoil, Weapon-R, GReddy, HKS, Unifilter, etc): Best filtering and excellent flow when oiled correctly
  • Stainless Steel Mesh (Blitz, etc): Worst filtration... amazing flow, recommended for track use only
BOY is offline   Reply With Quote
Old 06-09-2003, 09:55 AM   #3
GQ
Scooby Specialist
 
Member#: 4830
Join Date: Mar 2001
Chapter/Region: SCIC
Location: San Diego, CA
Vehicle:
12 DucatiSF/Abarth
Red/Nero

Default

Can't really give you a clear answer on this, although I have used the regular ole paper filter, K&N, and Amsoil. I really think that that the K&N and the Amsoil filter better than a paper filter, and allow for better airflow. This is apparent by my engine response with the filters(Amsoil and K&N) installed. It is more peppy. I assume that they filter well and much like each other, both being oil soaked. I don't really think that one has a clear advantage over the other, when comparing oil soaked filters, although K&N seems to be the prefred filter.
GQ is offline   Reply With Quote
Old 06-09-2003, 10:09 AM   #4
rilles
Scooby Newbie
 
Member#: 14332
Join Date: Jan 2002
Chapter/Region: E. Canada
Location: Waterloo
Vehicle:
2001 Forester S
gold

Default

rilles is offline   Reply With Quote
Old 06-09-2003, 06:44 PM   #5
Legacy777
Scooby Guru
 
Member#: 4800
Join Date: Mar 2001
Chapter/Region: TXIC
Location: Houston, Tx
Vehicle:
1990 Legacy & 97 OBS
AWD 6MT EJ22T AWIC Swap

Default

Very interesting reading.
Legacy777 is offline   Reply With Quote
Old 06-09-2003, 07:40 PM   #6
ciper
Scooby Guru
 
Member#: 15543
Join Date: Feb 2002
Location: san francisco, ca
Vehicle:
90BJ Legacy LS ABS
AWD 946 Rio Red Jpn built

Default

HAHA! Now what do all of the Amsoil junkies say?

This shows that cotton gauze may just be the best overall solution.
ciper is offline   Reply With Quote
Old 06-09-2003, 10:05 PM   #7
That Guy
Scooby Newbie
 
Member#: 23212
Join Date: Aug 2002
Chapter/Region: MWSOC
Location: Milwaukee, WI
Vehicle:
2002 Impreza RS

Default

I use Fram. And after reading the two websites, I'll continue to use Fram. They're cheap, I don't have to clean them, they appear to flow decently well, and paper seems to filter better than any of the others. I noticed an immediate difference over stock after I put a Fram in. I honestly can't justify spending fifty bucks on an air filter, that I then have to buy a cleaner kit for, when I can buy ten "cheapo" filters that keep my engine cleaner and flow nearly as good as the "premium" air filters.
That Guy is offline   Reply With Quote
Old 06-10-2003, 12:14 AM   #8
nySulli
Scooby Specialist
 
Member#: 32617
Join Date: Feb 2003
Chapter/Region: Tri-State
Location: NY
Vehicle:
2008 STi
DGM

Default

yeah, it makes me wonder about getting a cobb intake, i'm almost thinking about getting the ganz now to retain my stock airbox and filter.

but the k & N filter recharge kit is enough for a number of cleanings, i've gotten 4 out of mine, and still have some left from my last car
nySulli is offline   Reply With Quote
Old 06-10-2003, 02:30 PM   #9
ImprezaVA
Scooby Specialist
 
Member#: 32846
Join Date: Feb 2003
Chapter/Region: MAIC
Location: Elkton, VA
Vehicle:
1998 Impreza L-SOLD
Arcadia Green

Default

This makes me feel a little better after spending $47 on the K&N and not noticing any difference in gas mileage or horsepower. Sounds better though, and appears to be the best direct replacement air filter available.

-Charles-
ImprezaVA is offline   Reply With Quote
Old 06-10-2003, 11:26 PM   #10
kickin_81
Scooby Newbie
 
Member#: 16679
Join Date: Mar 2002
Location: MN
Vehicle:
2004 Forester XT

Default

Here's some for Amsoil!

http://members.aol.com/brnorth5/amsoil/airfil.htm
http://www.gadgetonline.com/airinduction.htm
http://www.lubespecialist.com/airfilt.htm
http://www.roadkill.com/~davet/moto/air.filters.html

FWIW, I am a customer of Amsoil. I use their synthetic oil, oil filters, and the air filter. I have a Ganzflow CAI with a modified airbox elbow and insides. Compared to the stock air filter, the air filter gave me more oomph in the whole rev band. I have not used a K&N air filter before, but I think it should be just as good of a filter.
kickin_81 is offline   Reply With Quote
Old 06-11-2003, 12:42 AM   #11
mike270
Scooby Specialist
 
Member#: 12863
Join Date: Nov 2001
Chapter/Region: MWSOC
Vehicle:
2002 2.5RS

Default

Well this is interesting....It seems that the overall consensus is that there is no consensus.
mike270 is offline   Reply With Quote
Old 06-11-2003, 09:37 AM   #12
DanzBorin
Subaru Bounty Hunter
Moderator
 
Member#: 7131
Join Date: Jun 2001
Chapter/Region: TXIC
Location: Houston - Downtown Julie Brown
Vehicle:
2015 Outback - Croc
Dundee Edition Ice Silver

Default

you can find information to support almost anything...

the general opinion on the boards is that a K&N drop in will get you little or nothing, but keeps you from having to buy new filters... the amsoil flows well and cut quite a bit off my wife's 1/4 mile time in the SE-R... I'm sure it's not much more power than a K&N though, but seems to filter very well... you also don't need to clean it near as often...

as for the Cobb filter, it flows well and seems to filter on par w/ a K&N...
DanzBorin is offline   Reply With Quote
Old 06-11-2003, 10:41 AM   #13
rilles
Scooby Newbie
 
Member#: 14332
Join Date: Jan 2002
Chapter/Region: E. Canada
Location: Waterloo
Vehicle:
2001 Forester S
gold

Default

The first 2 links look like Amsoil info-mercials (graphs and data are from Amsoil).
In the first 3 links, ALL articles are by authors who are also Amsoil dealers.

The last link is from an often quoted newsgroup posting (rec.motorcycles) by Ed Hackett (of oil faq fame) made in 1994. Where did his data come from? validity of it still in question.
rilles is offline   Reply With Quote
Old 06-11-2003, 11:02 AM   #14
kickin_81
Scooby Newbie
 
Member#: 16679
Join Date: Mar 2002
Location: MN
Vehicle:
2004 Forester XT

Default

In my opinion, I don't think it would matter if the testers are supporting a side or not (in the case of my links, Amsoil). Actually, it adds more fuel to the fire if one is trying to find the most out of their tests. Tests are tests. You can't go wrong with that.
kickin_81 is offline   Reply With Quote
Old 06-11-2003, 11:09 AM   #15
GooseMan
Scooby Specialist
 
Member#: 2462
Join Date: Sep 2000
Chapter/Region: SCIC
Location: Los Angeles/Montreal
Vehicle:
2012 Audi A4 Avant
S-Line Titanium

Default




I love my filter
GooseMan is offline   Reply With Quote
Old 07-26-2003, 04:28 PM   #16
mike270
Scooby Specialist
 
Member#: 12863
Join Date: Nov 2001
Chapter/Region: MWSOC
Vehicle:
2002 2.5RS

Default

bump...got the ganzflow and just stayed with the stock air filter for now. I am trying to decide if I want to go with a cleanable filter or just stick with the stock. I only drive around 5000 miles a year so the convenience of never buying a new one isn't a big deal to me.
mike270 is offline   Reply With Quote
Old 07-28-2003, 02:54 PM   #17
trojan9x
Scooby Specialist
 
Member#: 3169
Join Date: Dec 2000
Location: Effort, PA
Vehicle:
2001 2.5 RS: Holbert
Memorial Winner 2003

Default

I'm looking for a replacement for my K&N cone filter (2.5") inlet and approx 7-9 inches long. I was looking at the pipercross, but I've only found them overseas. any one using any other cone filter besides these?
trojan9x is offline   Reply With Quote
Old 07-28-2003, 05:15 PM   #18
jrgiza
Scooby Newbie
 
Member#: 21086
Join Date: Jul 2002
Location: NB, MA
Vehicle:
2001 Impreza 2.5RS
silverthorn

Default

Quote:
Originally posted by nySulli
yeah, it makes me wonder about getting a cobb intake, i'm almost thinking about getting the ganz now to retain my stock airbox and filter.

but the k & N filter recharge kit is enough for a number of cleanings, i've gotten 4 out of mine, and still have some left from my last car
I believe the Injen CAI uses a K+N filter - just not the panel type that fits in the airbox. I'm not sure about the Cobb...
jrgiza is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
basic Tune Up Kit for Subaru air filter oli filter NGK plugs Syms-STI Engine/Power/Exhaust 0 02-15-2010 03:36 PM
Tune Up parts, OEM oil filters, fuel filters air filters, spark plugs LangstonSubaru Accessories & Misc 14 05-05-2004 11:49 AM
OEM Oil Filters, OEM Turbo oil filters, fuel filters, spark plugs, air filters LangstonSubaru Vendor 'For Sale' Classifieds 125 03-29-2004 08:25 AM
WRX Part# - Air filter + Fuel filter InfamousDX Service & Maintenance 2 01-13-2004 04:16 AM
Air filters for MY00 air filtration system latinskllz Service & Maintenance 0 07-30-2003 02:18 PM

All times are GMT -4. The time now is 10:07 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2016 Axivo Inc.
Copyright ©1999 - 2016, North American Subaru Impreza Owners Club, Inc.