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Old 01-19-2022, 12:41 PM   #17
h018871's Avatar
Drives: 2020 ZL1 Green
Join Date: May 2013
Location: Houston
Posts: 1,603
Originally Posted by cajunzl1 View Post
should be two gaskets? One for the header to cat, and the other is the outlet flange end.

Not sure if they are the same for a ZL1 and an SS or not...

Difficult finding those numbers...
here you go
12624939: ring gasket at manifold
21992620: flange gasket on passenger side
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