it depends...and people will debate on this topic...with a wet shot it could cause puddling in your intake manifold and then it goes boom and blows your intake manifold right off...Fuel is not really meant to run through the intake which a wet kit makes it do...A better way to run a wet kit would be with a plate that sits in the middle of the upper and lower intake manifold...meanwhile with a wet kit you get more hp... dry kits seem to be the safest way but if you get a kit like the NOS kit, it measures the shots at flywheel hp instead of rwhp...i dont know anything really about how dry kits are bad for the car or none brought to my attention.