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Designed for drivers focused on track-oriented performance
Precision rolled J-form threads for increased strength
The visual appearance can be further enhanced with the optional carbon fibre rear diffuser (matte or high gloss)
Constructed from lightweight
ARP 260-4702 Head Stud Kit for Subaru EJ Series Phase 2 '99 to present SOHC ymm_31 Designed for drivers focused onIt 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