hello people hope you can help me,was today on the Calibra&Vectra meet with manzel and sent my 2l on the test stand and the measured value was 77.8 kw 107 hp there can not be true what? Is that because of the candles or the air filter???anytime while driving I don’t feel that the only 107 ps should have hold finally mi8t the other 2l with!! would be happy if you can help me further……….?????????