My home is brick with Dolby Certified Drywall on the interior, the windows are also double-paned enhanced glass that is suppose to have sound proofing qualities. Unfortunately it is still unable to block the sounds of incredibly loud exhaust systems that transmit vibrations that physically shake the walls and rattle the windows with it's deep drones or high whines.

I can only imagine how loud it must be for someone with a 'paper thin wall' home.

From the posts, I have determined that there is no logical reason for such loud exhaust systems besides it being a way for people to get attention. It also takes a special person, one with a deep sense of apathy and little to no consideration for others, to have such a disruptive 'mod' put onto their vehicle.