Wanted to share a few things I've discovered while changing out my plugs/coils and muffler.
While you're under the car this is a good time to change out the exhaust manifold bolts on both sides of the manifold inlet and outlet.
The nuts on the outlet side were badly rusted. In fact, I'm still struggling to get one off. Changed out with new ones and coated with anti-seize.
The nuts that are on the cats were also badly rusted so all new ones are going on there too.
What I also noted was that the new o-rings I picked up for the boost hoses are of a new design. My car had red and green ones installed but the new ones (green colored) seem to have ridges in them. Assuming Porsche thinks these will provide a better seal.