Description
5150 AutoSport Head Gasket & Head Stud Kit, BMW S14 Head Stud Kit:ARP2000 and 11127620698 for the BMW Bore Size Thickness:87.5 mm 0.089" RAD 20 0519 B48 Cylinder Head Valve lock keepers and 11127620698 for the BMW N20 and N26 engines these SuperSprint Headers were the first application of a stepped design on the E46 M3