A lot of folks like wet better because ya get extra fuel right off the batt because you are adding fuel with the fuel and nitrous into the intake manifold. instead of letting your ECU decide if you need more fuel. I had a wet on my old SOHC for my GSR I'm going with a DRY. No particular reason, just a lil cheaper and easier to install. In my opinion if you tune either of them correctly you should be fine.