Engine/Power - EJ20T (pre-2006 WRX and JDM) There is replacement for displacement, it is forced induction - OEM 2.0 liter turbo engines in the USDM WRX. 90-94 Legacy Turbo EJ22 turbo engines can also be discussed here.

Catback exhaust? Or Cobb Ap and catted downpipe

Thread Tools
 
Search this Thread
 
Old Apr 5, 2007 | 09:44 PM
  #1  
Ivegotthenuts's Avatar
Thread Starter
Registered User
iTrader: (21)
 
Joined: Mar 2007
Posts: 762
From: Oakland
Car Info: 2001 Honda Oddysey
Catback exhaust? Or Cobb Ap and catted downpipe

Ok, so I saved just enough money to start modifying the exhaust.

I can either buy a brand new cat-back exhaust, or I can get a used Cobb accessport and a catted downpipe, and I just had a few questions before I make a decision.

This is for a 2004 WRX, Car is completely stock engine wise.

1) I know I will probably get better gains with an aftermarket catted downpipe and accessport. With this combo and my stock catback system, will I run into any mechanical problems without getting a protune? Or will I be just fine with the 'off the shelf base map' from the accessport?

Also I understand that an accessport would be able to get rid of any CEL that arises from the aftermarket downpipe, correct?


2) Or, should I just go with something more mild and get just a catback exhaust until I save up enough money for the dp,ap, and a pro-tune?

Will I run too rich, or too lean without a EMU for my catback??




Any help would be appreciated, Thanks

Last edited by Ivegotthenuts; Apr 5, 2007 at 09:58 PM. Reason: left out a letter
Old Apr 6, 2007 | 04:44 AM
  #2  
iyamada's Avatar
Registered User
 
Joined: Mar 2006
Posts: 61
From: Hawaii
Car Info: 2005 WRX WAGON
just get a downpipe and uppipe for now. thats around 300-500 buckeroos. then save for about a month or two and get a catback. if you don't wanna do that then do it part by part starting with the accessport first. happy modding
Old Apr 6, 2007 | 09:07 AM
  #3  
strider327's Avatar
Registered User
iTrader: (10)
 
Joined: Jul 2006
Posts: 1,991
From: 510 CA
Car Info: 2005 WRX
Originally Posted by Ivegotthenuts
Ok, so I saved just enough money to start modifying the exhaust.

I can either buy a brand new cat-back exhaust, or I can get a used Cobb accessport and a catted downpipe, and I just had a few questions before I make a decision.

This is for a 2004 WRX, Car is completely stock engine wise.

1) I know I will probably get better gains with an aftermarket catted downpipe and accessport. With this combo and my stock catback system, will I run into any mechanical problems without getting a protune? Or will I be just fine with the 'off the shelf base map' from the accessport?

Also I understand that an accessport would be able to get rid of any CEL that arises from the aftermarket downpipe, correct?


2) Or, should I just go with something more mild and get just a catback exhaust until I save up enough money for the dp,ap, and a pro-tune?

Will I run too rich, or too lean without a EMU for my catback??




Any help would be appreciated, Thanks
Yo wassup Bro. Yeah like iyamada said up-pipe/downpipe. If you still have money left over then Cobb Accessport. I think you can get Titek combo for $500 at speedelement, called to Devin. BTW what part of Oakland are you from? I'm from around there too.

P.S. I am running Up-pipe/Catted Downpipe, Cobb AP stock catback. No problems just get the CEL fix resistor and plug the hole for the up-pipe and downpipe for the 02 you'll be fine.

Good Luck,
Calvin
Old Apr 6, 2007 | 09:51 AM
  #4  
Ivegotthenuts's Avatar
Thread Starter
Registered User
iTrader: (21)
 
Joined: Mar 2007
Posts: 762
From: Oakland
Car Info: 2001 Honda Oddysey
Thanks for the response guys.

But I thought getting a downpipe/uppipe without an engine management, would cause problems with the motor and what not.

How long did you guys run the dp/up for before you went ahead and got the accessport? Did you guys get pro-tunedafterward, or are you guys still on the base maps?

Yeah, I don't want to do anything stupid that would harm the car in the long run/


Oh and strider, Im around the east Oakland area, by Fremont High school
Old Apr 6, 2007 | 10:00 AM
  #5  
turbo_4_life's Avatar
Registered User
iTrader: (4)
 
Joined: Sep 2005
Posts: 1,483
From: California
Car Info: 04 wrx
Its always a good idea to get EM first.. that way but other 2.0 owners will tell you its ok to get exhaust first..


The best MOD/advice would be to do a search/research that way you arent left with any doubt.
Old Apr 6, 2007 | 12:28 PM
  #6  
omygata's Avatar
Registered User
iTrader: (20)
 
Joined: Mar 2005
Posts: 2,004
From: Sacramento, mackin' on ho's
Car Info: The ladies wild
The AP still works wonders with your stock parts...I'm planning on getting a v.2 just for a little extra daily driving fun and all I have is an axle back and short ram intake.
Old Apr 6, 2007 | 12:35 PM
  #7  
VRT Gump's Avatar
VIP Member
iTrader: (4)
 
Joined: Apr 2006
Posts: 3,632
From: Yokosuka, Japan
Car Info: 2008 EVO X/1991 Nissan Skyline GT-R32
Go with the AP first so when you do get the exhaust you can flash the stage2 until you get tuned. Better safe then sorry in my opinion and the gains from just the AP will be good enough to hold you over until you get the exhaust done up.
Old Apr 6, 2007 | 01:58 PM
  #8  
strider327's Avatar
Registered User
iTrader: (10)
 
Joined: Jul 2006
Posts: 1,991
From: 510 CA
Car Info: 2005 WRX
Or just wait it out until you have enough money to do it all at once. So you get the full effect all at one time... Yeah I'm more near Oakland High School near lake shore.
Old Apr 6, 2007 | 01:59 PM
  #9  
VRT Gump's Avatar
VIP Member
iTrader: (4)
 
Joined: Apr 2006
Posts: 3,632
From: Yokosuka, Japan
Car Info: 2008 EVO X/1991 Nissan Skyline GT-R32
you will save money doing it all at once. Usually you can get a special when you buy an AP and get a tune at the same time.
Old Apr 6, 2007 | 06:04 PM
  #10  
Ivegotthenuts's Avatar
Thread Starter
Registered User
iTrader: (21)
 
Joined: Mar 2007
Posts: 762
From: Oakland
Car Info: 2001 Honda Oddysey
Alright, well then I guess I've got to save some more money up.

But if anything I'll probably get an AP first then.

Thanks guys
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
soybean
NorCal Classifieds
0
Jan 2, 2015 03:12 PM
freshrex
NorCal Classifieds
5
Mar 19, 2009 11:10 PM
flatline
NorCal Classifieds
17
Aug 3, 2008 11:38 AM
alex8
NorCal Classifieds
5
Dec 11, 2006 10:58 PM




All times are GMT -7. The time now is 06:31 PM.