Water Leaking

[daz8235]

Hi sorry think I posted this in the wrong forum earlier. I have just picked up a 370z 60plate when looking underneath to try to figure out the aftermarket exhaust (on tick over) I noticed water dripping from a very small pipe about half way along the body. Does anyone know what this is please ? I have only had it two days so apologies if its come up before, took me 1/2 day to figure out how to start it and another 1/2 day to work out opening the boot ! Stereo next !