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Registered
Join Date: Apr 2002
Location: Houston (Clearlake), TX
Posts: 11,360
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I was about to ask the same question before I remembered the search function.
I only found a 0.012" difference between the two gaskets and they're both a little loose on my B&B exhaust. The fiber and metal gasket has the smaller ID so I guess that's what I'll use.
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2014 Cayman S (track rat w/GT4 suspension)
1979 930 (475 rwhp at 0.95 bar)
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