This Carrillo Pro-H heavy-duty connecting rod (single) is made for Subaru EJ-series engines—EJ18, EJ20, EJ22 and EJ257 commonly found in WRX/STI applications—and uses a 3/8" CARR bolt. Offered as an individual rod, the Pro-H design supports reinforced rotating assemblies where a high-strength, service-grade connecting rod is required for engine builds using these Subaru platforms.
Carrillo Subaru EJ18/EJ20/EJ22/EJ257 (WRX Sti) Pro-H 3/8 CARR Bolt Heavy Duty Connecting Rod (1 Rod)