Full thread case studs question

[hipdoc]

I'm looking into using the full thread (99310117053) studs for my 2.7 high compression engine project. I see several types of full thread stud out there. Some say 993 style Dilavar, Brand "Genuine", and Brand "OEM", and "Genuine Porsche" with varying prices. What's the difference and which one should I get?
Thanks,
Alan

[Speedy Squirrel]

I know. The actual content of the part is always a bit of a mystery on Pelican. Only one thing is for sure, the ones called Genuine Porsche are parts from Porsche.

I ran into this with valves recently. I was pricing 993 sodium filled intakes. The prices are all over the place on Pelican. The ones called OEM we’re not even sodium filled.

[Trackrash]

FWIW, I bought some OEM exhaust valves recently. They were MUCH less expensive than the Genuine Porsche. However they had the Porsche "P" stamped on them, so, I can't imagine that they were lower quality than the Genuine Porsche ones.