Originally posted by JEFFOS69
I say as far as basic kits go go Nitrous Express then NOS and then ZEX thats in order of best to least.
I have them in reverse order
NX is wet single fogger, which risks puddling fuel into one cylinder, igniting that fuel and causing an intake backfire. NOS and Zex are pretty equal as far as dry kits go, except for the fact that Zex regulates the fuel pressure according to bottle pressure, so that the a/f mixture is always good...don't run too lean. This is for basic kits as you said, for 75 shot and lower.