ARP 201-5000 Main Stud Kit for BMW 2.5L (M50). 2.8L (M52) & 3.2L (S52US) inline 6 ymm_23 Includes hardened parallel-ground washers

Includes hardened parallel-ground washers

Remapping the ECU is mandatory to prevent potential check engine light warning signals

six-point hex bolts stand up to repeated adjustments and feature an integral washer flange for greater load distribution

This is typically defined by the loads that are carried by the bolts in terms of piston/rod weight and the rotational speed of the engine

ARP 201-5000 Main Stud Kit for BMW 2.5L (M50). 2.8L (M52) & 3.2L (S52US) inline 6 ymm_23 Includes hardened parallel-ground washersThere are many important reasons to use ARP main stud kits, including the elimination of main cap walk and fretting, as well as protecting the threads in your engine block. All kits come complete with hardened parallel ground washers and high quality nuts. Some applications have provisions for mounting windage trays and have specially designed standoff studs with serrated lock nuts to position the windage tray and lock it securely in place. The studs