Buy it

And while you're at it take your cats off and you'll have the meanist sounding NSX around

I use to live in your area and could have shown you... I think it's part fun and part safety... Fun b/c it'll cover your Acura valve chatter... and safe b/c it creates surrounding awareness... since you are so low/people struggle to see you... at least ppl will hear you coming. It never occured to me until one day when I pulled up next to a truck at a red light... who said... "I never saw you coming and was about to cut lanes... but I heard something really mean sounding... so I didn't change lanes though I needed to"... I think it saved him from changing lanes and running over me... It makes ppl aware of you... I noticed a really big difference/decline in getting cut off etc.
These sound clips are with a crummy digital still camera... but this is the lightweight and the cat bypass pipes...
http://youtube.com/watch?v=Pm-OWw8hj_U
http://youtube.com/watch?v=UEApZnO68_Q
Lee