[Turbo_pro]

Without trying to argue or create a head stud advertisement, I would suggest that the engineers at Porsche decided that the head studs they designed in 1963 were not "completely satisfactory" to handle the additional stresses of higher horsepower developments.

Quick question: How would you feel if your wife described your marriage as "completely satisfactory"?

As far as I can tell, depending on where you buy your studs, the Supertec studs are only a couple of hundred more than Canyon or even stock steel studs. They are 100s less than ARP and Raceware and half the price of Dilavar.