I just bought an '05 Deluxe that has a shorter muffler on it, and it's quite loud. I don't know if it's a different Royal Enfield muffler or some other brand. I don't mind the volume, as I figure it makes me that much more noticeable in traffic, but there is a pretty good exhaust leak where the muffler joins with the header pipe. It looks like the muffler is installed as far forward as it will go, but it doesn't quite cinch up into the header. I'm about to loosen everything and get out the 2 Lb precision adjustment tool.