well its definitely not the high pitch sound that you normally would associate with a 4 cylinder engine. A v6 will never sound like that, just like how a v6 can never sound like a Siamese Crank v8 of a Ferrari. I'm very very very very happy with my headers, now i rev to 4K-5K all the time just to hear the car sing. It changes the tone in a way that is hard to describe, its not really higher pitch but it sounds more powerful, ( that is the first impression my girl friend said )