SODDING NOISE??!!???!! Sir, what you hear out of the open pipes of a Harley-Davidson bike isn't noise, but pure, sweet muffler music. HD engineers spend millions of dollars on perfecting that sound, by messing with the size/lenght of the pipes and even with the phasing of the camshafts, sometimes sacrificing fuel economy or power for that great sound. Ever pulse of the exaust is American (loud, annoying, and may damage you if you get too close) and is as American as apple pie, baseball and sodomy. Don't mess with something us Yanks hold so close to us...