Crazy write up.
Firstly, I knew it
Want to mention a couple things, LOL at the guy who said nitrous doesnt take 75 pictures (posted in your last thread).
Its also funny you mention a lot of people say nitrous isnt for BMW's, cause I do get the vibe, but lets be real, Nitrous is for every performance enthusiasts no matter which car; specifically individuals looking for the most HP/dollar.
Want to also mention, no discredit to nitrous express, but I ran as well as my friends Dynotune nitrous kits which have held up for years on previous cars and are a little less expensive.
Basic Wet or Dry kit, with bottle heater and bottle opener etc at a fraction of the cost, and with the reliability still there.
Thats just some food for thought.
Good luck with it, your work is always clean and your reviews thorough!
And I can tell you all about how a small shot goes so far, my 25 shot on the initial install put me 8mph up in trap speed.