There is a drone at those speeds and it gets MUCH better at 80mph. I rarely travel at a set speed for long and actually enjoy the music my pipes make (unbaffled). I had the same issue on my 2005 goldwing with Cobra pipes and had to keep the baffles in with that one. I don't know if it was a different pitch or if I'm harder of hearing now, but that one was to loud with the baffles out... this one is awesome with my new pipes.