[solidsleeper]

Very thorough list, looks like you covered it all. What DP / exhaust are you looking at?

I'm currently thinking Wagner Catted DP.

Edit: see you said Supersprint. I do like that the DP has the flex piping (I have no idea if it makes a difference, but also why I'm leaning Wagner DP)

I was researching about switching out the secondary cats with Supersprint midpipes and the center exhaust. It looks like those should fit with stock exhaust and DP.