It seems like you've been silently updating the OP, Mr. RR.
One thing caught my attention:
I don't know if I asked you before, but don't they only make for I-4 models? I like quiet exhausts, and I'm a big fan of Hyper Medallions. They were the top of my choice for my exhausts in the future (ever since I got my car in '07), but I thought I ended up figuring out that they don't make for V-6 models.
... Wait a min. Maybe this is b/c you have CL-S engine that you can mount the one for CL model... If that's the case,... maaan, that's not fair... That's just not fair at all, Chris...