(12) Exhaust valves

and 11121722738 for the M20B20

1987-1989     E24     M6 [American Market]

1992-1996     E36     318i / 318is

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ARP Main Stud Kit, BMW M10 F93 (12) Exhaust valvesThis ARP Main Stud Kit is specifically engineered for use with BMW M10 B18 and M10 B20 engines. Upgrading from factory main bolts to ARP Main Studs is a simple, yet greatly beneficial upgrade. ARP Main Studs offer the following benefits: Uniform Clamping Force: ARP Main Studs provide a uniform clamping force that OEM bolts cannot. With the improved distribution of pressure across main bearing caps comes better, more precise crank alignment for