ARP Head Stud Kit Undercut Studs 12pt Head Acura Integra GSR 1994-2001 *Discontinued 31006-AN018 5i 2010 - 2011 Subaru

5i 2010 - 2011 Subaru Impreza 2

Year Make Model Submodel 2008 - 2012 Mazda CX-7 GS

Machined from E4340 vacuum-melt chrome moly forging and slowly heat-treated to Rockwell C36 specs

Wastegate actuator with higher pressure that will replace the stock GT28R unit

Touring 2007 - 2009 Subaru Legacy 2

ARP Head Stud Kit Undercut Studs 12pt Head Acura Integra GSR 1994-2001 *Discontinued 31006-AN018 5i 2010 - 2011 SubaruIt is for good reason that virtually every top professional engine builder relies on ARP Pro Series head studs for their all out competition powerplants. Simply stated, there's not a better stud setup on the market today. For openers, ARP uses a premium grade 8740 alloy that is rated far superior to aircraft quality. Each stud is placed vertically in special racks and precisely heat treated to 200,000 psi. This procedure ensures complete heat