ARP Head Stud Kit BMW S54 E46 M3
ARP Head Stud Kit to suit BMW S54B32 in the E46 M3 and Z4 3.2L.
Though the instructions do not say so, it is a general belief that these can be torqued to ~10% higher than the ARP specs to achieve more head gasket clamping force. Do not over-tighten more than 10%, and any amount of over-torquing is performed at your own risk.