Hi, I want to buy the Genx-2 upgrade "nx express" for my Direct port system, It comes with bottle warmer, purge, and a down blow tube, Does anybody here knows what the down blow tube is???
I think what it does it vent nitrous gas outside of the car in the event that the pressure inside the bottle gets too high. It should also come with a fitting and a little metal disc that you will need to insatll on the bottle.
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