ARP WRX / STI 11MM Head Studs This ARP head stud kit is made from 8740 chromemoly steel, 190,000 psi tensile strength. It is precision centerless ground and thread rolled to Mil-S-8879 specs. The kit includes black oxide finish st... more >>>
$323.41 $226.44
Cosworth Subaru EJ20/EJ25 11MM High Performance Head Studs Essential for high performance engine builds, heavy duty head studs reduce cylinder head movement in high boost engines optimizing cylinder head to block sealing. Ultra high performance fasteners are ... more >>>
