I'm anxious to hear mine after the mufflers break in some, if they will even change any.
Definitely louder and deeper, not as plain and mellow. You'll get a good break-in with your headers and offroad X. I just put my order in yesterday for the 1 7/8 and offroad X. I'll probably buy an H pipe down the road to hear the difference anyways. How long did it take your headers to get to you? I'm looking at three weeks...