BMW M50|2 S50|2 K1 Connecting Rods Not all connecting rods are manufactured equally. There are several key points that separate   properly designed and manufactured connecting rods from their inferior counterparts.   Ranging from the materials used, the heat treating process, the overall design, and tolerances.   Our relationships with manufacturers has allowed us to custom tailor connecting rods   to our specifications, ensuring that these connecting rods will be capable of withstanding the   forces exerted on them without fracturing. In the event of failure, these connecting rods will bend   and not fracture, which is quite favorable in terms of potential failure characteristics.   We offer several upgrade options for those aspiring to achieve higher horsepower and torque   levels. Standard fasteners for these connecting rods are ARP2000 however we offer the   option of an L19 upgrade. In terms of material options we offer connecting rods in   chromoly steel, aluminum, titanium, and 300M depending on the magnitude of your build. Materials Available:   300M   Aluminum   Chromoly Steel   Titanium Price: $594.00 - $1699.00