I bought this and decided not to install it on my leased vehicle.
This is a Vishnu PWM meth kit. It does not include nozzles, I believe that is all that is missing, you can see the picture for all the included parts.
As a bonus, it does include a trunk mount tank and enough hose to convert the system to trunk mount if desired.
I'm asking $350 shipped (conus), obo. Should work for both N54 and N55.
PM me.
-Adam