Does adding another muffler to the system change anything significantly on the power front? I've been thinking about this on my 5 Ton to make it more neighbor friendly. As it is now, I've avoided cranking up or leaving at anything that would be rude for running a lawn mower because the right side of the truck is 30 feet from my neighbor's house and their bedrooms. During the day, no big deal, after 8pm, I'd rather not annoy the two nice ladies next door that haven't complained yet about my truck.