... High performance 3.Stable&reliable 4.Strict QC management connecting rod : 1> Connecting rod Material: 40CrNiMoA(4340) Forged Steel.2> ... Sets weight matched to +/-1.5 grams.7> Supply racing connecting rods for Volvo, Opel, Toyota, Nissan, Ford, BMW, Mitsubishi, Volkswagen ... Passed ISO/TS16949 and ISO14001 and offer OEM service.. For more information and specification,please contact us. connecting rod