im trying to figure out if the zex system comes with the small red button to let the nitrous blow, l know it comes with an arming switch, but does it also comes with the little red button like the one on fast and the furious

You can get little red push switches anywhere. Try an auto parts store. Although l think the ones in Fast and Furious where on the steering wheel. Which in that case you can buy a steering wheel which comes with those buttons for the horn and instead plug in the nos system there.

All those things accomplish is blowing your engine. So if you can afford to replace it, go ahead. But there are different ways of getting more HP without causing damage.

l just looked at a zex kit in the summit mag l have and looks like it does not come with one, which l think most nos kits dont. Anyway you need to most likely buy that a momentary push button and a fogger nozzle(purge valve). Doing this injects both nos and fuel in a dense fog and allows for a more complete burning and more hp.