Exhaust Question Thingy - Subaru WRX Forum
 
LinkBack Thread Tools Display Modes
#1 Old 12-31-1969, 07:00 PM
WRXtuners Member
 
Join Date: Nov 2001
Location: Colorado Springs
Posts: 24
Morgan is an unknown
Send a message via AIM to Morgan
Hiyas. The cat-back exhaust I wanted is finally out, but I've been looking turbo-back systems, and was wondering if it's possible to get the cat back that I wanted, and yet get the parts that a turbo back provide. I'm not even really sure what all the necessary parts are in an exhaust system. Also with uppipes, I've been noticing that most of them are catless. Aren't there any that have cats? x.x I still need to pass emissions. Ermm unless that passes emissions already? Anyway, help meee help meeeeee
Morgan is offline  
Sponsored Links
Advertisement
 
#2 Old 12-31-1969, 07:00 PM
Moderator
 
Join Date: Nov 2001
Posts: 311
Images: 3
Gerlando is an unknown
Morgan-



Which cat back are you planning on getting? I've read that most European and Japanese exhaust systems are interchangeable, but most US systems don't work well with parts from different vendors.



FYI: The way the WRX's exhaust is built is as follows. You start with the exhaust headers, uppipe, turbo, downpipe, midpipe, muffler.



If you are getting a catback its most likely just the muffler section. It'll give you the cool sound, but you'd need a downpipe and midpipe to really gain any performance.



The uppipes people are selling are catless because, having a cat before the turbo isn't very good for EGTs and turbo spool up. Removing the cat frees up the airflow to the turbo by a noticable amount.



Hope that all helps.
Gerlando is offline  
#3 Old 12-31-1969, 07:00 PM
Moderator
 
Join Date: Nov 2001
Posts: 311
Images: 3
Gerlando is an unknown
Oh and the emissions thing. Well if you only replace the muffler and uppipe you'd still have 2 cats on your car. That should be enough (but no guarantees). The small cat in the uppipe is only to reduce emissions at startup.
Gerlando is offline  
#4 Old 12-31-1969, 07:00 PM
WRXtuners Member
 
Join Date: Nov 2001
Location: Colorado Springs
Posts: 24
Morgan is an unknown
Send a message via AIM to Morgan
Thanks a lot for your help, Gerlando, I really appreciate it. As for the cat-back I was going to get, it was the Tanabe R-Medallion. But after reading that, I'm just thinking about going with the MRT Turbo-back exhaust. Just emm, gotta get the money for it first. Heh-heh. Thanks again.

If it's jammed, force it. If it breaks, it needed replacing anyway.
Morgan is offline  
#5 Old 12-31-1969, 07:00 PM
Moderator
 
Join Date: Nov 2001
Posts: 311
Images: 3
Gerlando is an unknown
Morgan-



Sounds like a good idea, and remember to get an uppipe while you're at it! I did my uppipe after doing my turbo back and you can feel a huge difference!
Gerlando is offline  
Reply


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



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 On
Trackbacks are On
Pingbacks are On
Refbacks are On