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ARP Head Stud Kit - 2015-2021 WRX / 2013-2022 BRZ

SKU: ARP 260-4301

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 190,000 psi, ensuring complete heat penetration. Following heat-treat, each stud is centerless ground to make it as close to perfectly concentric as possible. This procedure involves about ten very slight cuts and results in an exceptionally straight part. 

ARP studs are manufactured to such exacting. . . Show More >


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