The gaskets that come with the headers are ok, but I like the SEC copper gaskets, they don't leak & you can take them on & off several times before you have to replace them. Although there are some new very soft Alum. lavered gaskets that are suppose to be just as good. Bout can be remove & replaced several times whitout any damage to them. Plus on just about any Pontiac you want them to seal & stay put so you don't have to change them all the time.
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