Eliminate Crank Hub Failure on Your N55/S55 with RK Autowerks’ 4-Pin Solution

A90 / A91 Supra

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- PVD Rings (Install Guide Here)

ARP Head Stud Kit, BMW S38 B38 cooper ring Eliminate Crank Hub Failure onARP custom designed the ARP2000 head studs specifically for the S38B38 EURO inline 6 cylinder engines. These head studs provide various benefits upon installation, such as improved clamping force and better sealing of the head gasket, ultimately preventing head gasket failure. These benefits are especially important for high performance or turbocharged engines that experience increased cylinder pressure, which can cause additional stress on the head