yeh L means learner lol and yeh the vent about the headlight is functional, and puts cold air in the filter (CAI) and the hood scoop, there is a hole i cut underneath it so it is functional, but its more for looks.
lucky fucker lol i got anotehr 2 years ahead of me and i actually dont have my liscence yet, just put it there for fun lol i get my liscence in a few months