what is the best kit? nitrous express? nitrous outlet? zex? the hard line kit from N. outlet seems to be the newest technology, but the n express kit has integrated solenoids. what about tuners?? bbr AED American Muscle what if I want to use my 2 step and a tps switch? I floor the gas pedal to set launch rpm , but I don't want the nitrous to shot yet???? so many question and my bonus is getting closer.