#107628, "RE: DIY copper gasket" In response to In response to 2
You may find that copper does not make a durable turbo gasket. At those temperatures and in that environment, I think copper with corrode into paper and blow away. That is what happened when I used copper downpipe gaskets (after a year or so). The stock turbo gaskets I have used were always embossed stainless steel. They hold up very well at those temperatures and in that environment.