Check out this insanely awesome MONOBLOCK brake set up from Endless. The R35 GT-R kit uses 6 Piston calipers both on the front and rear with 387mm rotors! Damn!!! There are other applications as well. According to Endless you only need these if you are going to do some extensive RACING:)
Endless USA is proud to announce the release of the new forged monoblock 6-piston caliper dubbed “The Mono-6.” The result of five years of development and rigorous testing is an extremely high performance caliper both light weight and high in rigidity. The Mono-6 caliper weighs only 7.4 pounds. Available in “Race Alumite” finish only, the Mono-6 comes with the option of titanium piston caps which further increase strength and durability while decreasing weight. The Mono-6 will be paired with 370mm rotors for most vehicles and 387mm rotors for the R35 GTR. Due to the R35 GTRs high performance, it will utilize the Mono-6 for both front and rear setups. Applications include Mitsubishi Lancer EVO (CT9A, CZ4A), Subaru Impreza (GDB, GRB), Toyota Supra (JZA80), Infiniti G35, Nissan 350Z, Nissan Skyline (R33, R34, R35), and Porsche 911 (933, 966).
Find out more at Endless USA.