[hdxl1200r]

I agree with SportyPig on this one. My SEII changed as the carbon built up in them. At first, they had a higher sound but as the carbon builds up they now sound lower and produce more of a rumble at any speed. I'd run them a couple hundred miles and see how you like them then, It took mine about 400 miles. I went on a run with the local Legion Riders and the first three bikes were Big Twins with straight pipes, I couldn't even tell if my bike was running at times!!!!!