I bought my 3rd NSX a few months ago ('97) and need to do an air filter change according to my NSX tech. After reading this and several other threads on this subject, it appears there is somewhat of a consensus to stick with the OEM airbox as there is no evidence of any dyno-based HP differences in aftermarket intakes (other than the sound effect). However, the UNI Filter appears to be the way to go for the filter. The second option, which sounds like it is purely acoustic, would be the Cantrell / DF scoop. I think I will start with the UNI Filter and then consider the scoop. Here's the Dali article showing the HP comparisons for the intakes that was just another data point for this decision.
http://www.daliracing.com/v666-5/info/intake_dyno/intakedyno.cfm
NSXGMS - you're comments in several of the threads I reviewed help me come to this conclusion.
Does this sound like I am on the right track to go UNI Filter with stock airbox and then consider the scoop for acoustics only? SOS shows a 7 HP gain with Cantrell AIS & UNI but i think most of the gain might come from the filter and not the Cantrell AIS.
Any comments?