Alcon, one of the names in braking, now provides us with OE replacements rotors for our GT-R's.

Save 2.2lbs per rotor!  That's 2.2 pounds of rotating mass, which is equal to 10 times that amount of stationary weight.  If you upgrade all 4 rotors to these Alcon rotors, its the same as taking 88 pounds out of your GT-R!
That's 2.2lbs per rotor, times 4 rotors, equals 8.8 pounds.  Multiple by 10 since its rotating mass, giving you 88 pounds!

These are bolt-on 2-piece replacements, utilizing an aluminum hat and - of course - full floating discs.

Crescent slotted as seen in the picture.  These rotors are both street and track-worthy.
Brembo Caliper in picture not included.

Front size: 380mmx34mm
Rear size: 380mmx30mm

Price is for the pair of front or rear rotors, your choice.