C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Y-Pipe Gaskets?

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Old Oct 11, 2008 | 02:29 PM
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Chris Kennedy's Avatar
Chris Kennedy
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Default Y-Pipe Gaskets?

Hi!

I am going to be getting rid of the TPIS exhaust on my '89, and will be using the opportunity to also install a new front y-pipe with the integral catalytic converters (I may be moving to California). Does anyone know if there is a gasket at the joint between the y-pipe and where it attaches to the exhaust manifold? If there is, what is the size?

Many thanks!
/s/ Chris Kennedy
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Old Oct 11, 2008 | 11:37 PM
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No gasket. It is a ball socket and sleeve that press together.
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Old Oct 12, 2008 | 04:56 PM
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Originally Posted by John A. Marker
No gasket. It is a ball socket and sleeve that press together.
Many thanks! I really appreciate the reply and information.

/s/ Chris
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Old Oct 12, 2008 | 11:22 PM
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When you say TPIS exhaust what do you mean? TPIS headers?? Front Y-pipe with no cats??

Why are you taking it off?
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Old Oct 13, 2008 | 09:03 AM
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Originally Posted by mako41
When you say TPIS exhaust what do you mean? TPIS headers?? Front Y-pipe with no cats??

Why are you taking it off?

It's the TPIS catback exhaust system. The problem is simply that it is poorly designed and made, and I have decided to replace it and take care of the converters at the same time.

/s/ Chris Kennedy
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