Not the exhaust but the actual engine noise. My current car runs at about 4k rpm while crusing at 80 mph and the engine noise really wears you down on long drives. I've done my homework and calculated that the MSP would rev to that same speed at 80 mph but it has a smaller engine than my current car and probably has more sound deadening too. It's a real pain to have to shout to the person in the passenger seat because your moving with the flow of traffic. Just curious Thanks