M12 head studs for BMW M57N2 and N57 engines (aluminium engine block only)
Probably the best offer in the tuning market
Made on CNC machines of multiple heat threated, certified steel
M12 type of studs - direct replacement for OEM head bolts
Torque spec - 40 Nm, 80 Nm, 120 Nm
You have to use OEM washers under the nuts from the studs set
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