Welcome to the North American Subaru Impreza Owners Club Tuesday November 25, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
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 12-27-2002, 12:05 AM   #1
Sparticus
Scooby Specialist
 
Member#: 14620
Join Date: Jan 2002
Location: Marysville, WA.
Vehicle:
2000 Impreza RS

Question High Flow Cat?

I have been looking at buying headers and wanted to get a Hight flow cat with it. But I really dont know to much about them. So here goes a list of questions

1. What will it do to the car. (gains, losses, and anything else)

2. Will it be louder.

3. Are they easy to install and are there any out there that will not set off the CEL

4. Where is a good place to get them for a cheap price that will work with borla gen 4 headers.

And any input is welcome. Thanks

Ben
* Registered users of the site do not see these ads.
Sparticus is offline   Reply With Quote
Old 12-27-2002, 12:33 PM   #2
nomorefocus
Scooby Newbie
 
Member#: 9677
Join Date: Aug 2001
Location: Peoria, IL
Vehicle:
2002 2.5 RS
Aspen White

Default

1. about 4-6 hp gains. They work well with borla header to make good power though.
2. yes
3. yes to the install, kinda to the CEL. Cobb's causes a CEL, but they also have a 20 dollar fix.
4. I don't know about cheap. I bought from Cobb so it was expensivie.
nomorefocus is offline   Reply With Quote
Old 12-27-2002, 01:08 PM   #3
Silverscooby27
Scooby Specialist
 
Member#: 9124
Join Date: Aug 2001
Chapter/Region: MAIC
Location: Dayton, OH
Vehicle:
2013 Mustang GT Vert
2014 335i xdrive

Default

Cobb's new custom one is not very expensive. $315 I think, compared to Random Tech. I had a random tech fall apart in < 6 mo. anyway. I haven't installed the new Cobb one, so I cannot vouch for anything, but they claim that it fits very well.
Silverscooby27 is offline   Reply With Quote
Old 12-27-2002, 09:28 PM   #4
Sparticus
Scooby Specialist
 
Member#: 14620
Join Date: Jan 2002
Location: Marysville, WA.
Vehicle:
2000 Impreza RS

Default

well that is alot more money then I was thinking they were going to be. I was thinking they were around 100-200. Well thanks for the info.
Sparticus is offline   Reply With Quote
Old 12-27-2002, 10:12 PM   #5
huckedup16
Scooby Specialist
 
Member#: 20612
Join Date: Jun 2002
Chapter/Region: NESIC
Location: Punch Her In The Butt!!!!
Vehicle:
2012 Impreza Sedan
Black

Default

Cant you get high flow cats for like $50 from Summit??
huckedup16 is offline   Reply With Quote
Old 12-28-2002, 12:24 AM   #6
Storm
Scooby Guru
 
Member#: 5218
Join Date: Mar 2001
Chapter/Region: MWSOC
Location: SAUL'S Motorsports
Vehicle:
96L Most Over-
Developed Beater

Default

Yes. A Catco universal (see also weld on) hi-flo cat is $59.99. Add in custom flanging by your local Midas shop and you're looking at about 1/2 the price of the Cobb or RandomTech cat (which is probably a Catco anyway)

Jay Storm
www.sourcemotorsports.com
Storm is offline   Reply With Quote
Old 12-28-2002, 02:04 AM   #7
Silverscooby27
Scooby Specialist
 
Member#: 9124
Join Date: Aug 2001
Chapter/Region: MAIC
Location: Dayton, OH
Vehicle:
2013 Mustang GT Vert
2014 335i xdrive

Default

Quote:
Originally posted by Storm
(which is probably a Catco anyway)

Jay Storm
www.sourcemotorsports.com
umm. . . No. Neither of the two are Catco.
Silverscooby27 is offline   Reply With Quote
Old 12-28-2002, 04:00 AM   #8
SubaruRallySport
Scooby Newbie
 
Member#: 22595
Join Date: Aug 2002
Location: Aurora, CO
Vehicle:
2002 2.5 RS
Silver

Default

All I have sat about car mods is most of the time you get what you pay for.
SubaruRallySport is offline   Reply With Quote
Old 12-28-2002, 01:42 PM   #9
Storm
Scooby Guru
 
Member#: 5218
Join Date: Mar 2001
Chapter/Region: MWSOC
Location: SAUL'S Motorsports
Vehicle:
96L Most Over-
Developed Beater

Default

...and a lifetime warrantee is pretty good for $60. 'course you don't get the fancy name...
Quote:
Originally posted by SubaruRallySport
All I have sat about car mods is most of the time you get what you pay for.
Jay Storm
www.sourcemotorsports.com
Storm is offline   Reply With Quote
Old 12-30-2002, 05:11 PM   #10
Teh Legacy
Scooby Specialist
 
Member#: 9853
Join Date: Sep 2001
Chapter/Region: International
Location: Never miss an opportunity
Vehicle:
to keep your mouth
shut.

Default

Dynomax makes a good high flow cat, and it's fairly cheap.
Teh Legacy is offline   Reply With Quote
Old 12-30-2002, 07:50 PM   #11
Sparticus
Scooby Specialist
 
Member#: 14620
Join Date: Jan 2002
Location: Marysville, WA.
Vehicle:
2000 Impreza RS

Default

Quote:
Originally posted by 97legacygt
Dynomax makes a good high flow cat, and it's fairly cheap.

Where can I get one?
Sparticus is offline   Reply With Quote
Old 01-01-2003, 05:47 PM   #12
Albert
Scooby Specialist
 
Member#: 3288
Join Date: Dec 2000
Location: San Diego, CA. USA
Vehicle:
1998 Impreza 2.5RS
Rally Blue Pearl

Default

Quote:
Originally posted by Sparticus



Where can I get one?
Here is one place (also the Perfection metallic cat is available from them).
Both are probably availabe at local mufler or performance shops.
http://www.a-1performance.com/super_converter/index.htm


edit:
Also note the link to their sister company http://www.discountconverter.com/


Anyone buy from either of these places??

Last edited by Albert; 01-01-2003 at 05:57 PM.
Albert is offline   Reply With Quote
Old 01-01-2003, 07:00 PM   #13
Albert
Scooby Specialist
 
Member#: 3288
Join Date: Dec 2000
Location: San Diego, CA. USA
Vehicle:
1998 Impreza 2.5RS
Rally Blue Pearl

Default

I visited a few of their pages and found CATCO (ceramic substrate) cats for $40 but you have to purchase at least ten units.

****I called them and the sales rep says he can get the "newest" CATCO (metallic substrate) 3-way for $172


About how much is install if owner provides his own cat?


Update: The Dynomax site says their cats (ceramic) are illegal on post '95 OBDII cars. So... which cats can we legally use??

Last edited by Albert; 01-02-2003 at 05:21 PM.
Albert is offline   Reply With Quote
Old 01-02-2003, 01:38 AM   #14
Bumsarama
Scooby Newbie
 
Member#: 3137
Join Date: Dec 2000
Location: Saint Louis, MO, USA
Vehicle:
2005 STi
WRB Nukabe/Cusco/Carbotec

Wink Lending a hand

Just to let you guys know, one of the vendors is selling the 4th Generation Brullen headers for only $295 shipped. These are the latest from Brullen and they have taken care of all the problems which some of the earlier generation headers had. I don't know exactly which vendor. You might have to do a search under Vendor For Sale classifieds. I would highly recommend them and they also have a $10 CEL fix should you ever have a CEL issue.
Bumsarama is offline   Reply With Quote
Old 01-02-2003, 06:11 PM   #15
Albert
Scooby Specialist
 
Member#: 3288
Join Date: Dec 2000
Location: San Diego, CA. USA
Vehicle:
1998 Impreza 2.5RS
Rally Blue Pearl

Default Re: Lending a hand

Quote:
Originally posted by Bumsarama
Just to let you guys know, one of the vendors is selling the 4th Generation Brullen headers for only $295 shipped. These are the latest from Brullen and they have taken care of all the problems which some of the earlier generation headers had. I don't know exactly which vendor. You might have to do a search under Vendor For Sale classifieds. I would highly recommend them and they also have a $10 CEL fix should you ever have a CEL issue.
Nope...not Brullen.

Rennick is selling the Borla for $295 shipped.

Rennick has/had one used Brullen header for ~$400.


**Also, who is selling the CEL fix for $10 ?
Albert is offline   Reply With Quote
Old 01-02-2003, 09:28 PM   #16
Sparticus
Scooby Specialist
 
Member#: 14620
Join Date: Jan 2002
Location: Marysville, WA.
Vehicle:
2000 Impreza RS

Default

well I dont feel alone anymore, I am no the only one that has the same questions.
Sparticus is offline   Reply With Quote
Old 01-02-2003, 10:17 PM   #17
Will98RS
Scooby Newbie
 
Member#: 15816
Join Date: Feb 2002
Location: New York
Vehicle:
1998 Impreza RS
Black

Default

so is there any reason to get the cobb or random tech rather than getting a catco or another universal?
Will98RS is offline   Reply With Quote
Old 01-03-2003, 03:55 AM   #18
Albert
Scooby Specialist
 
Member#: 3288
Join Date: Dec 2000
Location: San Diego, CA. USA
Vehicle:
1998 Impreza 2.5RS
Rally Blue Pearl

Default

Quote:
Originally posted by Will98RS
so is there any reason to get the cobb or random tech rather than getting a catco or another universal?
based mostly on the experiences of others wilth premature cat failure I would choose a metallic substrate cat over the less expensive ceramic substrate type. One major drawback with ceramic cats are possible premature failure if A/F ratio deviates much from stock. Either overheating from running lean or fouling from running too rich. Now if your plans don't include any mods that will throw the A/F ratio out of wack then a cermaic cat might fit the bill.
Price wise, just for the cat (some come with installation kit):
- hi-flow ceramic runs $50 - $110
- hi-flow metallic $140 - $190



Catco:
- ceramic:~ $60
- metallic: ~ $170

Xtremeflow:
- ceramic: ~$100
- metallic: ~$210

** Dynomax Super Converter are a good ceramic converter.
**Tennaco (Perfection) makes a good metalic converter but are hard to find.

And don't forget the direct fit prefabbed pipes from Cobb, TWE, ILP, and Random Tech: ~$240-$360.


Ultimately cash flow, your engine package, and good info from people you trust will make your selection easier.
Albert is offline   Reply With Quote
Old 01-04-2003, 12:34 AM   #19
cvalle-sd
Scooby Specialist
 
Member#: 420
Join Date: Oct 1999
Chapter/Region: SCIC
Location: The LBC, CA, USA
Vehicle:
2001 Cr-V
Silver

Default UPDATE

I got my Random/Cobb cat installed, adjusted. I got a recurring CEL light for the first week & 1/2, then I bought a set of Denso Iridium plugs and reset the ECU, and I am STYLIN'. Great power, clean tailpipe, no CEL and schmoove. Get the cat, whichever one. I have the stock headers and I'm not sure I want to bother replacing them now.

PS - I know this has been addressed, but what practical advantages are there to wrapping the exhaust. I have the stock shields on the headers, so I was just thinking of wrapping the cat/mid/rear sections. Pro/Con?
cvalle-sd 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
$40 ebay high-flow cats....how different from $75 magnaflow hi-flow? kaisersouse General Community 5 05-30-2008 05:08 PM
Looking for Universal High Flow Cat part # and specs, or suggest a 3 inch High Flow ciper Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 4 07-17-2003 03:16 PM
Cobbs New or Cat Random Techs New High Flow cat? Imprezafan1 Normally Aspirated Powertrain 1 10-21-2002 12:44 AM
Stock 3rd cat vs. high flow cat? Red Rocket Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 1 06-03-2002 09:04 PM
REplacing both cats with high flow cats? DarkLite Normally Aspirated Powertrain 8 10-18-2000 08:15 PM


All times are GMT -4. The time now is 12:28 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.