Saw it in person and its crap. I wouldn't trust something like that on my 4 banger stang. Maybe I'd put it on my corolla but even then I don't know. To use it you have to squeeze the hand trigger, only problem is that trigger is screwed on to the top of the bottle, so you have to be holding the bottle while going 100mph to use it, call me crazy, but that seems a little unsafe to me. Plus the hose is creap purge hose, not even stainless nitrous line.