seat for NLC air box?

I have installed on my bike (2011 night rod) the NLC air box and a rear fender (non NLC) that accommodates a passenger. It works fine with the stock seat but I have heard that after market seats can be problematic with this air box.

Anyone have any recommendations? I'm looking for a sleeker seat with passenger. I don't want to buy a seat and then have to send it back because it didn't fit.

Thanks