intercooler. You can just barely see them in the picture of the car at the top of the duct in the fascia. They are the angular discharge nozzles. I was confusing Ab's NX intercooler sprayer and that's where I got the name from, but it doesn't have that setup. It is just two NOS fogger nozzles.
Since the system uses a MAS to compute injection duration AND when the air going through the intercooler gains density, the system still knows how much air is getting into the engine. You dont see anything of the sort you were talking about with it wanting to run lean.. Essentially, if it starts running lean, you probably need bigger injectors or a better fuel pump. This car has a stock fuel pump too! :)