For fans of Harley Davidson motorcycles, this could be the one news you are looking for. Relax, since this is all just a recording, and I guess the original sound quality was much better. At least you can know the character of his sound. However, the sound quality is influenced by the performance of the engine, rpm, and exhaust. Harley Davidson (HD) has a huge engine power and strength, and through the video below, you can see, the exhaust is very hot when the flue gas is very large.
Very terrible, exhaust out the fire, can roast beef steak. If your original speakers with a subwoofer, you can definitely hear the original sound character. Harley Davidson already have at home? You can try, but do not do in a densely populated area. Enjoy.