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Old 06-28-2009, 10:35 PM   #1
skep18
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Join Date: Jun 2009
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DGM

Default Stock Up Pipe Issues

So, yes, I'm a n00b here. I searched and there are just so many posts that pull up that aren't relevant.

My question is, I have heard the stock up pipe can be a problem. Something about if something in the cat comes loose, say buh-bye to your turbo... Anyone got any more information on this claim?

Thanks.
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Old 06-28-2009, 10:54 PM   #2
Audiosavvy
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Yes. Your stock cat in the stock uppipe can dislodge and/or come apart, and it will destroy your turbo. If there's only one thing you ever do to your car, it should be replacing that uppipe with an aftermarket uppipe. Not only will you gain some throttle response, spool, and power, but you will save your turbo from possible death. If you do add an aftermarket uppipe, you need to unplug the EGT sensor that's in the stock uppipe and put a 2.2 kohm resistor in its place so as not to throw a CEL.

Pour yourself some hot cocoa (or Jager) and read this
http://forums.nasioc.com/forums/showthread.php?t=443943\




PS- 947 people will say that all you need to do is to gut your factory uppipe, and the results are the same as an aftermarket uppipe. That's not true. While your main issue is safety, an aftermarket uppipe will make more power and enhance throttle response better than an STi uppipe or a gutted factory uppipe. That is a fact, not an opinion.
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Old 06-28-2009, 11:06 PM   #3
Jubert69
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^^
That.


Audio, for people like me in CT, would we pass emissions with a catless uppipe?

skep, if you need a catless uppipe, I got one for $40 shipped
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Old 06-28-2009, 11:29 PM   #4
skep18
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Quote:
Originally Posted by Audiosavvy View Post
Yes. Your stock cat in the stock uppipe can dislodge and/or come apart, and it will destroy your turbo. If there's only one thing you ever do to your car, it should be replacing that uppipe with an aftermarket uppipe. Not only will you gain some throttle response, spool, and power, but you will save your turbo from possible death. If you do add an aftermarket uppipe, you need to unplug the EGT sensor that's in the stock uppipe and put a 2.2 kohm resistor in its place so as not to throw a CEL.

Pour yourself some hot cocoa (or Jager) and read this
http://forums.nasioc.com/forums/showthread.php?t=443943\




PS- 947 people will say that all you need to do is to gut your factory uppipe, and the results are the same as an aftermarket uppipe. That's not true. While your main issue is safety, an aftermarket uppipe will make more power and enhance throttle response better than an STi uppipe or a gutted factory uppipe. That is a fact, not an opinion.
Thanks for the info. My car has low mileage, but I'll definitely start planning on that one.
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Old 06-29-2009, 03:02 PM   #5
Chris Cuevas
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Quote:
Originally Posted by Jubert69 View Post
^^
That.


Audio, for people like me in CT, would we pass emissions with a catless uppipe?

skep, if you need a catless uppipe, I got one for $40 shipped
Technically speaking, as long as you have one cat... You will pass the sniffer test. Just not the visual inspection if that applies to your state. I am in CA, and they do both. I had bolt the OEM DP back on to pass emissions among other OEM parts...

As far as the issue at hand, I agree about the stock up pipe being an issue.
I replaced the OEM UP with a Perrin after about 2 months of owning my 02.
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Old 06-29-2009, 03:48 PM   #6
Brock31
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Default

1) Remove stock uppipe
2) Gut stock Uppipe
3)Re-install gutted Uppipe w/o egt sensor and plug bung
4)Use 2.2 Ohm resistor in stock plug in location
5) Be on your way for about $5
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