ARP Cylinder Head Stud 12 Point Nuts Chromoly Black Oxide - 12 Degree Hitman Heads 81500010 Machined step secures the end

Machined step secures the end of a standard tape measure for easy reading of the length to the center of the opposite cap

Accelerator Pump Check Valve

The rear cat is retained on this system to maintain a smooth deep sound but more importantly to keep the system street legal

Can also be used as a lower inner control arm mount

ARP Cylinder Head Stud 12 Point Nuts Chromoly Black Oxide - 12 Degree Hitman Heads 81500010 Machined step secures the endARPs 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: Cylinder Head Stud Kit 12