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Old 02-28-2006, 08:59 PM   #1
Erexxx
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Default Going Cobb Stage 2 w/ stock uppipe ok?

I'll be going cobb stage 2 on my 03 wrx next week and I'm going to have the stock uppipe on for probably a good 2-3 months before I can get to the uppipe install due to some complications...

you guys think I'll be ok?


Any one else run stock up pipe with cobb stg 2 with no probs?
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Old 02-28-2006, 09:02 PM   #2
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gut it or get a new one.... once you increase boost, its going to get hot and blow chunks of metal into your turbo.....
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Old 02-28-2006, 09:05 PM   #3
02WHITEDUB
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Besides, with the DP off you're halfway (OK 1/3) done changing the UP.
Might as well get a cheap gutted stocker or STi UP and swap them at the same time.
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Old 02-28-2006, 09:42 PM   #4
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Yes, you'll most likely be OK with the stocker for a few months. I did my DP in August last year, and I have an UP waiting to go on as we speak. I've had no problems so far. Yes, your EGTs are going to increase with the accessport tuning because you'll be running slightly leaner, but this idea that after going Stage 2 your UP cat is suddenly just going to break down and destroy your turbo is sort of overblown.

If you can do the UP at the same time, its definitely recommended, and I wish I had done it that way. But if you can't, you'll most likely be fine. Just don't go too nuts.

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Old 02-28-2006, 09:52 PM   #5
Erexxx
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haha i definately wont go too nuts and i already have the turbo back installed just doing the reflash and dyno'ing next friday
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Old 02-28-2006, 09:55 PM   #6
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Quote:
Originally Posted by Erexxx
I'll be going cobb stage 2 on my 03 wrx next week and I'm going to have the stock uppipe on for probably a good 2-3 months before I can get to the uppipe install due to some complications...

you guys think I'll be ok?


Any one else run stock up pipe with cobb stg 2 with no probs?
Well...

What does Cobb's website say?

Therein lies your answer.
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Old 02-28-2006, 10:00 PM   #7
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Quote:
Originally Posted by ButtDyno
What does Cobb's website say?
+1... forreal

right there in the map notes it says uppipe and pulley are "within limits" of their maps....

within limits = it's not required
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Old 02-28-2006, 11:27 PM   #8
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Yeah I know that but I hear all these people say get the catless up pipe or the higher EGT's from cobb stg 2 will cause your uppipe cat to melt and destroy your turbo...

so I just wanted to get peoples first hand experience
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Old 02-28-2006, 11:32 PM   #9
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Quote:
Originally Posted by Erexxx
Yeah I know that but I hear all these people say get the catless up pipe or the higher EGT's from cobb stg 2 will cause your uppipe cat to melt and destroy your turbo...

so I just wanted to get peoples first hand experience
So you trust Cobb to run your engine, but you don't trust their recommendations as to what parts you need in order to use their software?
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Old 02-28-2006, 11:34 PM   #10
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Quote:
Originally Posted by Erexxx
Yeah I know that but I hear all these people say get the catless up pipe or the higher EGT's from cobb stg 2 will cause your uppipe cat to melt and destroy your turbo...
i've heard that happening with bovs... but not from high egts on cobb's stg2 mapping
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Old 03-01-2006, 12:52 AM   #11
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Quote:
Originally Posted by ButtDyno
So you trust Cobb to run your engine, but you don't trust their recommendations as to what parts you need in order to use their software?
what are you talking about? I trust everything they have to say. THey say you can safely run an uppipe with the stage 2 but it's also not required.

I just wanted to know if other people were running stock uppipe on stage 2 and if they ran into any problems. That's it.
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Old 03-01-2006, 07:45 AM   #12
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Quote:
Originally Posted by spoolindc2
gut it or get a new one.... once you increase boost, its going to get hot and blow chunks of metal into your turbo.....
No, it is not going to get hot and blow chunks of metal into your turbo....

It may do this, but it is a small chance. From what I have read, the chances are really not much greater than when the car is stock.
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Old 03-01-2006, 07:54 AM   #13
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You keep hearing about it.I haven't seen anybody post about it though.
You can run without changing the uppipe if you want.
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Old 03-01-2006, 10:17 AM   #14
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<-- 33,000+ miles on Cobb stage 2 with OEM uppipe. No problems.
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Old 03-01-2006, 10:25 AM   #15
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Quote:
Originally Posted by spoolindc2
gut it or get a new one.... once you increase boost, its going to get hot and blow chunks of metal into your turbo.....
Hmm...this happened to you or someone you know?
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Old 03-01-2006, 10:36 AM   #16
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YOU ARE FINE! thread closed. your uppipe wont break, if cobb thought they would break, then they would have required a catless uppipe.
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Old 03-01-2006, 10:41 AM   #17
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In all the time I have spent here I have seen 1 or possibly two actual documented cases of the UP cat actually coming apart and getting sucked into the turbo. You are fine.
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Old 03-01-2006, 10:47 AM   #18
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Quote:
Originally Posted by brex16
YOU ARE FINE! thread closed. your uppipe wont break, if cobb thought they would break, then they would have required a catless uppipe.
My thoughts exactly, this is not common. I am running stage 2 w/stock up and I don't have any problems. Too many urban legends floating around and people making comments about things they're not familiar with. I'm sure it can happen but it is rare, probably just as rare as it happening to a stock setup.
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Old 03-01-2006, 10:58 AM   #19
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I've seen the pictures... I've heard the stories...

you should def. get rid of it... it just makes logical sense...

it will not only increase your performance, but also the reliability.
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Old 03-01-2006, 11:10 AM   #20
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Quote:
Originally Posted by subieworx
In all the time I have spent here I have seen 1 or possibly two actual documented cases of the UP cat actually coming apart and getting sucked into the turbo. You are fine.
...and I have seen none (not arguing with you subieworx). This is the most overblown issue I have seen on these boards.

You're fine.
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Old 03-01-2006, 11:15 AM   #21
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Quote:
Originally Posted by HerculesPeanut
...and I have seen none (not arguing with you subieworx). This is the most overblown issue I have seen on these boards.

You're fine.
++++++111111111111111
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Old 03-01-2006, 12:31 PM   #22
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not the most overrated issue is installing an uppipe...

people think it's impossible or such a pain in the ass... but really it's cake...

I did mine myself with no lift...

get out the record book.... a stage 2 with catless uppipe will "rip-apart" a stage 2 with a factory uppipe.
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Old 03-01-2006, 03:42 PM   #23
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I have done several uppipe installs and they are cake after the first one, just takes time if you doing it yourself to get under and over the car repeatedly. but get that uppipe out, that cat in there is the worst idea ever
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Old 03-01-2006, 04:52 PM   #24
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Quote:
Originally Posted by Sharky NRK
I have done several uppipe installs and they are cake after the first one, just takes time if you doing it yourself to get under and over the car repeatedly. but get that uppipe out, that cat in there is the worst idea ever
Please come and do mine for me, I'll supply the beer
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Old 03-01-2006, 05:02 PM   #25
Paulie V
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To summarize what others have said and what I've seen:

Most (if not all) the uppipes that I've seen that have broken apart have been on cars with externally vented BOV- this includes one that was at a dealer getting a new turbo and uppipe

However,
When you do the DP, you're already halfway there to replacing the UP anyway, so it might not be a bad idea to get some quicker spool-up and neat sounds. I threw in my gutted stock UP the same time I did my DP and I think the most time-consuming part of the whole install was messing around with the heatshields for the DP and drilling and tapping my exhaust manifold for my EGT probe. Really, the UP isn't that big of a job, especially if you're doing a DP at the same time. Just remember- PB Blaster is your friend!
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