I don't see why these cant be used correct me if I'm wrong, these have 180,000psi tensile strength can be torque to 57lbs and have 9,970lbs preload that is way more than a 220,000psi 8mm stud can handle
But the OEM studs are not the weak point, it's the aluminum cylinder that the studs are screwed into that is the point of failure. Plus, you only at most need to torque the nuts down to 21 Lb-ft.