ARP Head Stud Kit EJ20 & EJ25 11mm

Description:
Exact tolerances ensure that gaskets and cylinder heads just glide into position and align perfectly. These ARP Head Studs U/Cut (Under Cut) include 12-point nuts and are manufactured by ARP from premium 8740 chrome moly steel and heat treated to 190,000 psi. They are thread rolled after the heat treating process, which vastly improves their fatigue tolerance compared to studs threaded before heat treatment. High-quality, parallel ground washers included.

Features:
- Fastener Style = Stud
- Undercut Stud = No
- Head Style = 12-point
- Fastener Material = 8740 chromoly
- Fastener Finish = Black oxide
- Washers Included = Yes
- Machining Required = No
- Length = OEM Spec

Applications: (Subaru Fitment EJ Series)
2002-2007 WRX
2004-2007 STI
2008-2014 WRX
2008-2014 STI
2015-2021 STI