ARP Head Stud Kit BMW M50 M52 S52
ARP Head Stud Kit to suit the Diff Lab engine girdle for M50, M52, S52, S50 and S54. The Diff Lab M50/S50/S54 girdle kit already includes a set of these.
Also used as head studs on M50, M52 and S52. Great for race engines, and boosted engines. Do not over-tighten more than 10%, and any amount of over-torquing is performed at your own risk.