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My POV is the popular misconception (religion) that all Dilavar is verbotten. On the contrary, all is not. Moreso with earlier versions. However, if there are breakage/failure issues with 993 twin turbo Dilavar studs, I've yet to read about them. Perhaps that issue is being suppressed? Dunno. FWIW.
If Supertec head studs are at least equivalent to the 993 studs, but cost less, I'd head that way unless I'm a stickler for factory only parts.
Sherwood
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