WOW, I think i have a new problem: my car is too silent!!? Ever since i got it at 60K miles that coupler has been rattling around, and now....whoa.
Thanks to everyone here for their advice- that ZZPerformance coupler that has been sitting on my desk for about a year is installed and sounding pretty. And YOU WERE RIGHT, taking off that SC wasn't that bad at all. Thanks again everyone!