Carrillo connecting rods are well known within pro racing and street performance circles for good reason; they produce a premium product that winning racers around the world depend on. Quality and pride go hand-in-hand at Carrillo Industries. Every Carrillo rod is made with winning in mind and Carrillo rods are a proven performer in both street and racing BMW S55 engines. Carillo's fasteners and "Carrillo" rods have proven popular with all racers who want the best.- Special Chrome-Moly based alloy Forged Rods- Lightweight Design for lower mass than stock- Strong and proven in racing- Excellent quality control- Tight tolerances and balancing- Sold in matched and balanced sets of 6- Includes High Quality Non-stretch WMC Rod Bolts- Optional CARR Bolt upgrade Tech Notes:WMC Bolts are the standard hardware included and are an excellent fastener. For extreme output applications and all out racing, the CARR bolt option holds maximum RPMs and HP levels.