ARP BMW Head Stud Kit - 12pt E46 M3/S54 Inline 6 Metric Quick Release Fittings Studs have 1/2"-20 threads that

Studs have 1/2"-20 threads that thread directly into pre-threaded bungs

Comfortably holds helmet

Will not damage shield coatings

as well as extensive lab and track testing have yielded a superior brake rotor

(2) #4 pressure and return lines (18" long)

ARP BMW Head Stud Kit - 12pt E46 M3/S54 Inline 6 Metric Quick Release Fittings Studs have 1/2"-20 threads thatARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Cylinder Head Stud Kit 12