Here's a video I found on Youtube. It has a few members from the RX8 Club in Spain showing off their cars. I thought it was pretty cool, it showcases the various intakes and exhaust very well. A lot of the videos on Youtube are just a few seconds long, not really giving people too much of a chance to hear a particular intake or midpipe. Maybe this will help some people; I know it definetely showed me the differences between the various intakes.

http://www.youtube.com/watch?v=Ma-jN_29TFM