Welcome to the North American Subaru Impreza Owners Club Friday December 9, 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 06-03-2003, 06:40 PM   #1
That Guy
Scooby Newbie
 
Member#: 23212
Join Date: Aug 2002
Chapter/Region: MWSOC
Location: Milwaukee, WI
Vehicle:
2002 Impreza RS

Default How many aftermarket cats?

So I want to get the exhaust done this summer, but I'd like to do header back. I'm thinking Magnaflow, 2.25", blah, blah, blah, but I'm not sure on what to do about the cats. It sounds like most people are only using one when they move to high flow. Is anyone using two to replace the stock two? If not, I'm guessing you've got a permanent CEL. If you replace the cats, what to do about the OBDII?

I'd like to stay eco-friendly, so any help would be much appreciated.
* Registered users of the site do not see these ads.
That Guy is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 06-03-2003, 07:50 PM   #2
jasona
Scooby Specialist
 
Member#: 11786
Join Date: Oct 2001
Chapter/Region: AKIC
Location: Alaska
Vehicle:
2014 OB 2.5i 6MT
Custom Dirt/Snow twotone

Default

I have 0, FWIW
jasona is offline   Reply With Quote
Old 06-03-2003, 08:23 PM   #3
Skylab
Scooby Specialist
 
Member#: 4263
Join Date: Feb 2001
Chapter/Region: SCIC
Location: Encinitas, Ca
Arrow

Keep the cats, stock, or aftermarket. It's illegal in every state not to have cats.
Skylab is offline   Reply With Quote
Old 06-03-2003, 11:34 PM   #4
Poppa smurf
Scooby Specialist
 
Member#: 8257
Join Date: Jul 2001
Chapter/Region: MAIC
Location: Washington & Frederick CO. MD
Vehicle:
2004 STI
Silver\Silver

Default

I passed emissions in Maryland with Borla headers, Random tech high flow cat and stromsung mid-pipe with dualtip muffler.
Poppa smurf is offline   Reply With Quote
Old 06-04-2003, 12:51 AM   #5
joefocker20
Scooby Specialist
 
Member#: 13745
Join Date: Dec 2001
Chapter/Region: MAIC
Location: Delaware
Vehicle:
2015 STI
WRB

Default

I also have 0 cats and no CEL.
joefocker20 is offline   Reply With Quote
Old 06-04-2003, 01:57 AM   #6
obyone
Scooby Specialist
 
Member#: 16523
Join Date: Mar 2002
Chapter/Region: MWSOC
Location: I do.
Default

I've got the MRT header / Cat with the MRT midpipe and have a permaCEL. I think it might be because my Pony Express MIL eliminator ($20 mod) came loose. I won't be able to find out for sure becuase my car has been out of commission for the last month due to an accident.
obyone 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
SE PA how many are catted/catless Lake626 Mid Atlantic Impreza Club -- MAIC 4 05-02-2007 08:50 AM
How many of you are running aftermarket Springs with stock Shocks?? platnumn Brakes, Steering & Suspension 14 07-18-2006 02:09 PM
POLL: how many use the stock bov, aftermarket recirc. bov, or full atmospheric bov NM02WRX General Community 37 10-25-2004 12:27 PM
How many People run with cats and how many have 0 cats? waitandbleed92 Factory 2.0L Turbo Powertrain (EJ Series Factory 2.0L Turbo) 29 04-04-2004 08:03 PM
How many peeps have an Fmic or Aftermarket Tmic Squish Member's Car Gallery 8 08-31-2002 02:06 PM

All times are GMT -4. The time now is 05:42 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.