Here are a few pics of my stealth setup :
http://i703.photobucket.com/albums/ww36/duud40/rs4%20nitrous%20and%20pics/IMG_4743.jpg
http://i703.photobucket.com/albums/ww36/duud40/rs4%20nitrous%20and%20pics/IMG_4742.jpg
http://i703.photobucket.com/albums/ww36/duud40/rs4%20nitrous%20and%20pics/IMG_4744.jpg
http://i703.photobucket.com/albums/ww36/duud40/rs4%20nitrous%20and%20pics/IMG_4747.jpg
http://i703.photobucket.com/albums/ww36/duud40/rs4%20nitrous%20and%20pics/IMG_4727.jpg
I then fitted a bottle heater but I didn`t seem to need it.
Biggest jets I had were 150 hp and after a good highway run I stopped to check everything and upon opening the hood , the WHOLE manifold was frozen.
Even got a bigger bottle later.