ARP Cylinder Head Stud Kit WRX / STI (2002-2018) Nissan The impressive engineering that went

The impressive engineering that went into developing this intake system results in amazing performance gains

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resulting in the best the two industry leaders have to offer: a monotube gas pressure suspension system that provides incredible driving pleasure and performance along with superior ride comfort

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ARP Cylinder Head Stud Kit WRX / STI (2002-2018) Nissan The impressive engineering that wentARP 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