CJM x Compstar Connecting Rods, EJ

CJM x Callies Compstar Track Mod Subaru EJ257 Connecting Rods

Callies Compstar Sports Series (SS) Connecting Rods deliver premium performance for racers who want top-tier quality without breaking the bank. Each SS rod features a robust H-beam design and is forged from 4340 steel, then carefully heat-treated to achieve optimal material properties for exceptional strength and durability. Wrist-pin bushings are built for reliable performance under high stress, ensuring long-term stability.

To further enhance performance, customers can choose from multiple upgrade options:

• ARP 2000 bolts for increased BHP capability compared to OE hardware.
• ARP 625+ bolts for even higher power levels, providing superior clamping force and durability in extreme applications.
• +2 mm rod-pin length option, improving rod-to-stroke ratio for enhanced mechanical stability and reduced side loading.

These rods are engineered to comfortably support a conservative rating of 750 BHP, with fastener and geometry upgrades allowing for additional power-handling capability depending on engine setup.