ARP BMW Main Stud Kit - M50/M52 CHOPCXS medium and large fits the

medium and large fits the following Bell SA2010 Helmets:

Chassis Engineering was started in 1980 to serve the needs of drag racers and hot rodders on the east coast who in the early days of the sport

GM A-Body / X-Body

Sold as a set

Distortion Free Low Fog Design

ARP BMW Main Stud Kit - M50/M52 CHOPCXS medium and large fits theARPs product line contains thousands of part numbers, and has expanded to include virtually every fastener found in an engine and driveline. These range from quality high performance OEM replacement parts to exotic specialty hardware for Formula 1, IndyCar, IMSA, NASCAR and NHRA drag racing and marine applications. Since 1968, ARP is the fastener of champions and the world leader in fastener technology. Product Description: Main Stud Kit 12 Point Nuts