ARP 260-4702 Head Stud Kit for Subaru EJ Series Phase 2 '99 to present SOHC ymm_31 Precision rolled J-form threads for

Precision rolled J-form threads for increased strength

Specifically designed to interface with AEM engine management systems

Constructed from lightweight

Designed for drivers focused on track-oriented performance

TDesigned to make the X4 M / X4 M Competition stand out from the crowd even more

ARP 260-4702 Head Stud Kit for Subaru EJ Series Phase 2 '99 to present SOHC ymm_31 Precision rolled J-form threads forIt 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, theres 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