Yes remove the secondary butterflies. If I remember correctly they font sell parts separately. Choice is to get new or used throttle body. Removing the secondary butterflies can make a few more HP top end but may produce a small flat spot on the bottom end. If you have a tuner I suggest cleaning the fuel map up after removal.Hey! thanks for the reply. I see. Any suggestions for what i should do with the problem? any point in buying a new STVA for example? what about removing the valves?