[Kracka]

There is no way to fix the problem w/o major changes to your air metering system. The car acts like that b/c the ECU thinks there should be more air going into the engine (the air that you dumped into the atmosphere from the BOV). Route your BOV back in and your car should run like new...I shouldn't change the sound too much, it will still be quite audible, especially with the hard intake pipe.