ARP Main Stud Kit, BMW M50 M52 S50 S52 BM_BS63_2HS_5453B6H BMW S50 US Applications:

BMW S50 US Applications:

and rotary ignition modes

F12 / F13 650i

Supertech valve springs are a trusted choice for achieving reliable

We strongly recommend using a high-performance valve spring kit with this option

ARP Main Stud Kit, BMW M50 M52 S50 S52 BM_BS63_2HS_5453B6H BMW S50 US Applications:This ARP Main Stud Kit is designed to replace BMW 11111735525 for the M50 M52 S50 S52 engines that was used in a variety of BMW models, including the E34 E36 chassis. 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