The NSX is unique in that the mid-engined layout actually does not require huge brakes in the front. In fact, most NSX BBKs out there have issues with front wheel lockup because the rear weight bias does not require throwing a huge set of front calipers (compared to say a front heavy Skyline or Supra). The KVR AP Racing setup I have consists of 4 piston calipers on the front with 13" rotors, 13" rotors on the rear utilizing the oem two piston caliper and upgraded pads and lines.