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Old Aug 30, 2011 | 06:38 PM
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Default Whats the difference?

between a decat downpipe and a decat up pipe, are they two different parts or one part with two names?
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Old Aug 30, 2011 | 06:40 PM
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Originally Posted by Blue and Gold
between a decat downpipe and a decat up pipe, are they two different parts or one part with two names?
Up pipe is to the turbo from the engine, and downpipe is from the turbo to the exhaust.

One goes up, one goes down lol.
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Old Aug 30, 2011 | 06:42 PM
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Different parts. Up pipe is the pipe leading up and into the turbo. Down pipe is the exit pipe from the turbo
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Old Aug 30, 2011 | 07:41 PM
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Old Aug 30, 2011 | 07:42 PM
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it is very confusing, i had this lol, if you have a wrx then you have a cat in both pipes if you have an sti then you have just a cat in the down pipe,
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Old Aug 30, 2011 | 07:46 PM
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Originally Posted by cuprajake
it is very confusing, i had this lol, if you have a wrx then you have a cat in both pipes if you have an sti then you have just a cat in the down pipe,
Dependand on year of car. No models had uppipe cats till new age around 2001
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Old Aug 30, 2011 | 08:11 PM
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well I have an MY03 STI so it looks like I don't have a cat in the uppipe then cheers
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Old Aug 30, 2011 | 08:15 PM
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Originally Posted by Blue and Gold
well I have an MY03 STI so it looks like I don't have a cat in the uppipe then cheers
Correct no up pipe cat on the sti
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Old Aug 30, 2011 | 09:12 PM
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Originally Posted by Jimbob
Up pipe is to the turbo from the engine, and downpipe is from the turbo to the exhaust.

One goes up, one goes down lol.

Ask a silly question...
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