Evo 2X High Performance Carburator This is a modified Walbro carb that will fit your Evo 2X. Very limited supply. Has been pre-tuned. First thing you will notice when comparing to your old carb is the size of the venturi. It's huge. More air, more fuel, more power. Will only fit your Evo 2X 50cc with Italian Active engine model, will not fit a EVO2 40cc nor a EVO/Uberscoot with Chinese engine.