McNuggs said:
My AEM short ram should be arriving in the next couple days, but i have a few questions
1.Has anyone heard of the MAF getting screwed up because an aftermarket intake?
2.IF i get a SES light should i put the stock air box back in before going to the dealership?
Well of course your taking the chance for your MAF getting screwed up, but most likely it won't.. chances are that it'll be good.. just gotta clean your filter every now and then...
It also depends if your using a cold air intake or short ram... in your case, you should be fine and not even have to worry about water getting in there

But for more as an cold air intake, if water was to get into the intake, depending on the amount.. could cause the car to hydrolock and there will be many problems from there... But so far i've had a CAI in my car for about a year and a half, and so far no problems with it.. only benefit that I did with it from day one was braced it tightly so it didn't shake or move around when I drive my car...
As for the SES light, most likely it won't go off, unless you do the install wrong or backwards with the MAF... but to answer your question, yea put the stock intake back on so the nissan dealership(s) won't have anything against you...