Yup, it tries to keep you with the maximum volumetric efficiency possable. The point where VE max's out, is the point in your powerband where the max torque occurs. The butterflys try and change the airflow streamlines to create either presure drops, velocity change, or streamline geometry to keep the VE high during the midrange. This can get extremely complicated so I will trust that the engineers at Kawi did thier homework and found the best possable combination for our bikes.sneaky said:Unless they were doing some sort of turbo set up I can see no advantages at all. The electronic secondaries are used to try and boost mid range torque by altering the airflow coming into the motor.