ARP Head Stud Kit 2000 Pro Series 12Point Head BMW M3 All 2001-2006

It is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all-out competition powerplants. Simply stated, there's not a better stud setup on the market today. For openers, ARP uses a premium grade 8740 alloy that is rated far superior to aircraft quality. Each stud is placed vertically in special racks and precisely heat-treated to 200,000 psi. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best.

Following heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. This procedure involves about ten very slight cuts and results in an exceptionally straight part. It's important to note that lesser quality studs are not even centerless ground the material is thread rolled in bar stock form (mostly before heat-treat, when the material is easier to machine). Because ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned something that won't happen with inferior quality head studs

Vehicle Fitments:

Year	Make	Model	Submodel
2001 - 2006	BMW	M3	Base
2001 - 2002	BMW	Z3	Coupe, M Roadster, 2.2i, M Coupe, Roadster, 3.0i
2006	BMW	Z4	2.5i, 3.0i
2007 - 2008	BMW	Z4	3.0si, 2.5si
2006 - 2008	BMW	Z4	M Coupe, Roadster 3.0i, Coupe 3.0si, Roadster 3.0si, M Roadster