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996tt header question

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Old Jun 3, 2017 | 10:43 AM
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996tt header question
Why is the other exhaust manifold welded on the flanges and the other not?
Noticed when grinded the welds smoother today. Should I tig-weld the flanges or not?
 
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Old Jun 3, 2017 | 11:54 AM
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On my 2003 Turbo neither manifold has any welds present around the header tubes on either side.

Looks like someone welded that one side maybe because of leaks real or imagined.
 
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Old Jun 3, 2017 | 12:03 PM
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Mine aren't welded either
 
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Old Jun 3, 2017 | 12:17 PM
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Someone welded it.
 
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Old Jun 3, 2017 | 12:21 PM
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Yup someone welded it. I had leaks from mine and thats where it was welded
 
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Old Jun 3, 2017 | 01:12 PM
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Does not look like a factory weld
 
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Old Jun 3, 2017 | 08:07 PM
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Thanks guys!, I will weld the other as well then.
 
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Old Jun 4, 2017 | 04:00 PM
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Originally Posted by acs370
Thanks guys!, I will weld the other as well then.
If the other side isn't leaking you might want to leave it alone. If the welding doesn't go well the manifold can warp/deform and the exhaust may leak as a result.
 
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Old Jun 4, 2017 | 04:19 PM
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Originally Posted by Macster
If the other side isn't leaking you might want to leave it alone. If the welding doesn't go well the manifold can warp/deform and the exhaust may leak as a result.
+1 if it aint broke...don't fix it
 
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Old Jun 6, 2017 | 09:58 AM
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I would do it on a jig. Make a panel and bolt the header to it so when you weld it won't deform and stay true.
 
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Old Jun 7, 2017 | 05:38 PM
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sidebar, do any of the aftermarket headers produce a gain over stock headers?
 
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Old Jun 7, 2017 | 08:50 PM
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Originally Posted by ExclusiveTT
sidebar, do any of the aftermarket headers produce a gain over stock headers?
I have read numerous places no unless you are getting crazy 850+ HP
 
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