There is a song called Boomtown with a line that says "all that money makes such a succulent sound". I was reminded of that line after riding with a couple friends on a Dyna and a FatBoy only I changed it to "all them Harleys make such a flatulent sound". Now every time I hear a Harley I think of that line. After punching out the baffles on his TBA, a guy on another site described his Triumph as sounding like dragons making love in a cave with water. I dunno. It was pretty original though.