ARP Head Stud Kit 11mm Subaru Models (inc. 2002-2014 WRX / 2004+ STI)

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 studs, hardened washers, and premium grade nuts.

Features

• 8740 Chromemoly
• Tensile strength: 190,000 PSI