Congrats to a fellow Black Coupe owner! *HUGS*
A rocket they are... The service manual shows rectangular filters, so I'd stick with those as they will seal just fine.
I'm probably one of the few who like the cup holder design, it's just the placement that sucks (in my opinion) and the lack of a second one.
I have a feeling that NSX could probably pull on you through a road course as those things really HUG the corners. Then again, if he said that the 'out of the hole' acceleration is there, it may be an even match.
Again, welcome and congrats...