Awesome write up, and glad to hear the thread has been helpful! You are killing it

You made a very important point about the gasket sealing surfaces. We no longer have to use the sealant injection process, which was poorly documented and very hit-or-miss. I recently did an N55 with the “new” process and no issues whatsoever. What a relief.

Disassembling the valvetronic is easy, assuming you have the correct spring compressor tool. Hit me up if you want to borrow mine. Besides valvetronic, there’s nothing unusual about that cylinder head.