they run a dry system? or do they only use 1 nozzle to spray both n20 and fuel into the intake? personally i would NEVER run a dry system no matter who makes it. It would be a great system if it was a wet system and im proablby going to contact them to see if i can get an ecu set up for my NX system. "from jwt site" PART DESCRIPTION: N20 DIGITAL PROGRAM SWITCHING MODULE MISC. Our N2O systems consist of a conventional solenoid-operated nitrous oxide spray nozzle. However, the supplemental fuel is not added by a separate fuel spray nozzle, as with most conventional N2O systems.