ARP Pro Series Head Studs Kit M1 For 88-95 Honda Civic/Del Sol D16Z D16A6 D16Z6 1.6L 2006-2016 Subaru WRX Design: 46mm monotube gas pressure

Design: 46mm monotube gas pressure

Merge X-Pipe improves performance & sound

Performance Test Options

6 LBZ LMM Duramax Diesel

ARP Pro Series Head Studs Kit M1 For 88-95 Honda Civic/Del Sol D16Z D16A6 D16Z6 1.6L 2006-2016 Subaru WRX Design: 46mm monotube gas pressureARP uses premium grade 8740 alloy that is heat treated to 200,000 p. s. i. This procedure ensures complete heat penetration and the results are far superior to those lesser quality studs from other manufacturers who just dump pieces in a basket and hope for the best. 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