Hi I'm new here and new to the Maxima world but not to tuning, had a 2001 3.0 Accord Coupe before I bought my Maxima a couple days ago. I'll tread lightly, but I can't see how what you're saying is true? They really don't make a CAI for 5th gens?
Surely not...
http://www.car-stuff.com/carparts/nissa ... t+Page%3A8
From what I know in the Honda world, CAI's are a waste of money IF you have a stock exhaust. If you have a performance catback that flows freer you can see moderate hp gains with a CAI. Nothing earth shattering, but a step in the right direction. Now SRI's can actually reduce hp, because you're just sucking in hot engine air.
Is that true in the Maxima world?