If you want two nitrous bottle's in the car you will have to have a Nano for each bottle. You can not feed two bottles with 1 nan
We have a nice billet bracket that holds both the nano and the Nitrous bottle. http://www.nitrousoutlet.com/catalog...=23§ion=75
Yes the nano will work with the Zex system.
I personaly would go another step colder non projected tip in the V series NGK plug.