Personally I would think that they would make it sound like a rice burner. I can't imagine getting a very nice sound from those mufflers.
Getting a V6, particularly a 3800 to sound good is tough, IMO. But with that said, sound is all objective. I like the sound of old american muscle V8s. Some like the way rice burners sound. So all depends on what your definition of "Sounds good" is.