I got to chime in here. I've driven NSXS with almost any brake system available out there except Tarox. Me personally has the Porsche big red system. Money aside, the Comptech Power grip out perform any of them by a big margin. And I mean a big margin!
The NSX stock brakes (91-96) are actually pretty decent. If you cook your brakes within 5 laps using street tires, you either: have shitty pads, not enough experience, or a freakin fast driver. In Thunderhill, the NSX stock brakes should hold up for around 10 good lap with good pads.
The 97 up stock brakes are an improvement, but still not enough if you use track tires.
Don't even think to just upgrade the front brake. You will have a car that has unbalanced brakes and will in fact stop shorter distance, especially on street tires. On track tires it is somewhat compensated, as the tires are very sticky, and more weight transfer. Been there, done that.
Our cars are mid-engine car, the engineers made the brake rotors, almost the same diameter, front and rear for a good reason. There are lot less weight transfer under braking, due to lower center of gravity, and the fact that most of the weight are in the back. Same with Porsche, their front and rear brakes are almost the same size. If I'm not mistaken the 97up NSX even has bigger rotors in the rear.
The Porsche big red is a good system, because they have the famous braking power and the seals so the caliper need not to be rebuild often. It is a street caliper that perform very well on the track. The downside, is, the caliper can be as much as 14mm thicker than any other brake kit out there. It is almost impossible to find a wheel that fits over the big mongo brakes. And I am 100% sure, the LE37, won't fit. As much as price go, unless you have your own machine shop and know what kind of material to use on the brake hat, brake bracket, and the bolt hardware, don't even think to do so. Even with such capabilities, you are looking very close to $2K with just the front kit alone. I know, cause I did it.
I think the AP system that science of speed sells is a very good system. Works very well on the track or on the street. It has proper brake balance, and priced very reasonably. It has clearance for most wheels.
The brembo GT, is also a good system. This is the thinnest caliper among all of them. About 6mm thinner than the AP. Thus give even more room than the AP, for wheel selection choice.
I can't comment on Tarox as I never tried them.
Good brakes reading!:
http://stoptech.com/whitepapers/brake_systems_and_upgrade_selections_122701.htm
[This message has been edited by Andrie Hartanto (edited 08 August 2002).]