Carrillo SCR5538-4 PRO-H Connecting Rod for VW/Audi 1.8T

Manufactured in the USA by CP-Carrillo, these rods are built to handle the extreme demands of forced-induction and high-revving motorsport applications.

Key Features:

• Forged from CP-Carrillo's proprietary Carrilloy (4330M) chrome-nickel-moly-vanadium alloy steel — vacuum arc re-melted (VAR) to ASTM standards for maximum material integrity
• PRO-H beam design delivers an optimal balance of strength and weight reduction over OEM connecting rods
• Manufactured from oversized forgings to ensure proper grain flow and elimination of surface inclusions
• Each rod is magnafluxed twice during production for surface flaw detection
• Individual Rockwell hardness testing validates the heat treatment process on every rod
• Controlled shot peen finish relieves tensile stress and significantly increases fatigue life
• Precision CNC machined with probing for validated dimensional integrity and tight tolerances
• Each rod is laser-etched with a job number for full traceability

CP-Carrillo connecting rods have powered championship-winning engines across virtually every form of motorsport, from drag racing to road racing to endurance competition. The SCR5538-4 set delivers race-proven reliability for turbocharged and high-performance street or track builds on compatible VW and Audi engines.