I'm running them on my EG. Stock non-cat header, 16disc , open caps. I'm good with the sound and they aren't too loud, but ya can hear them. No problem listening to tunes with them.
I have the Fatshotz on my 2012 TG. I had the cat taken out when I put them on. The bike sounds great. My wife likes the sound as well. I am lucky enough to have techs. at our local Harley dealership that know what they are doing. I would highly recommend the Fatshotz.