The 4-2-4's I've heard have been too loud for my liking, but everyone's tolerance for noise levels is different. I've had several different sets of pipes, from stock to Samson's, stock= too quiet, Samson's = TOO LOUD ! I now have 2013 HD Ultra pipes and they are just right for me unless I'm pulling the trailer then the reflected volume is a bit loud on long day's in the saddle.