IAG Performance ARP 1/2" Head Stud Set Subaru WRX 02-21 / STI 04-21 | IAG-ENG-1700 Vehicle Make_Subaru closed systems prevent unwanted oil

closed systems prevent unwanted oil vapors from entering the cabin

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

Wastegate Actuator - 15PSI Tial MVI

improve airflow

IAG Performance ARP 1/2" Head Stud Set Subaru WRX 02-21 / STI 04-21 | IAG-ENG-1700 Vehicle Make_Subaru closed systems prevent unwanted oilFitment 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