If its one of those perforated metal gaskets with graphite in the middle, you can bet it wont last long. Now im sure MANY people have had plenty of luck with them, but i personally havent. They dont seal well and if your running a cat or anything that will restrict exhaust flow, theres a good chance it will leak. Now you shouldnt "blow out" an o2 housing gasket unless something is seriously plugged up or loose.
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