Hey everyone, im new to the forums, but im not new to reading here. I just got a 90 vh45 soon to be put in a s13 and im wanting to put arp main studs in it but i cant find them anywhere. However, i was getting the crank out and noticed it came from the factory with main studs. Could that be why i cant find arp studs? Would the stock studs be as good as arp or are they TTY?