AROSPEED Mitsubishi Lancer Evolution EVO4 EVO5 EVO6 EVO7 EVO8 EVO9 Harden Lightening Crankshaft Pulley. AROSPEED Harden Lightening Crankshaft Pulley is different with others Aluminium crank pulley. It is using 6061 Aluminium and over-coating a harden layer.
