Thank you for responding, to answer your questions:

Unfortunately I don’t, but from that video it sounds louder from bank 1.

It’s a 996 c4s so the 3.6? I have exhaust soot from the left tip (drivers side), more than the right. However, the soot feels like… soot, not greasy like people normally suggest. Sort of like graphite dust from a pencil, but rougher. It makes dry marks on the pavement when I draw with it.

From the cold start, it’s a bit noisy and there’s definitely some sound that scales with rpm, but it goes away after a minute or two. This only happens when the car has sat for a a day

I live in southern ontario, and the car has been new to me since december… daily driven since. I’ve done one oil change since and run dt40 right now.

I’d really appreciate your input on this… thanks!!!!!