I already have one of thes beutys, do anyone think i can buy one more of those calipers or get Brembo to supply a GTR kit with this front caliper instead or is anyone intressted in to buy it..?

 

That caliper was discontinued quite a long time ago. I don't believe you will be able to find the other caliper if you don't have it already.

 

Are you sure, this is a Metal Matrix caliper that are lighter and stronger then the ALu one, cost is like 5000 dollar each i think

 

I'm sure. I've had those calipers in my hands before. The only area they were used was in Lemans sports car racing many many years ago, and then the sanctioning body banned 8-piston calipers, rendering them obsolete.