IAG Performance ARP 1/2" Head Stud Set Subaru WRX 02-21 / STI 04-21 | IAG-ENG-1700 Vehicle Make_Subaru GrimmSpeed has tested that it

GrimmSpeed has tested that it is also safe to run race fuel

offset wrist pins

These ties are CNC machined

Simplify alignment tuning with easy-to-use adjusters

Black textured finish which can be painted to match your interior if desired

IAG Performance ARP 1/2" Head Stud Set Subaru WRX 02-21 / STI 04-21 | IAG-ENG-1700 Vehicle Make_Subaru GrimmSpeed has tested that itFitment Information: 2002 2021 Subaru WRX 2004 2021 Subaru STI 2013 2020 Subaru BRZ 2004 2013 Subaru Forester XT 2005 2009 Subaru Outback XT 2006 Saab 9 2X Aero Features: The IAG Performance 1 2" inch Head Stud Set is manufactured by ARP and is designed for use on high horsepower Subaru EJ25, FA20, and FA20 DIT engines. Due to the larger size of the head studs, a greater load can be placed on the fasteners and in turn it aids in preventing cylinder