I have the zex wet kit, its alright, safe system, which is what I was looking for more than anything, but I am ready to step it up to something alittle bigger. My thoughts, if you are REALLY looking into a good nitrous set up, I would recommend getting with Nitro Dave, he sells COMPLETE!!! kits, and after thinking I saved alot, I ended up spending more, just to get little things, bottle heater, and window switch for the M6 in me, plugs, blow down tube, pressure gauge, purge kit, ect. All of which are not included in the ZEX kit. Not to talk bad on them, but dollar for dollar, I think I would of saved alot just getting a COMPLETE KIT..
My 2cents