I will probably have to at least supercharge my NSX when I get her. I want the car to be at least that fast. I like the CTSC kit for it. I rode in one and liked the powerband it had. The Bimmer has much more short gears than the NSX does. That was one thing I noticed right off the bat.
As for the Procede chip, well it will void the warranty right away and the new ECU's will show the addition of that piggyback when you take it in to the dealer. I have been warned by the service department about that. Dinan still has the warranty afterwards which is huge. Even if it doesn't do the same amount of HP it at least it is covered by the dealer. I like the V2 from what I Have seen but I don't like risking blowing up of my engine.