Rotora or Stoptech? maybe on a upgrade kit in the future

Rotora hands down. if Rotora was not available i'd wait until they're imo. either that, or Endless brakes. i'm kinda for the JDM stuff.

Project µ r0x3rZ
Endless Waltz got some nice upgrade systems.
Brembo is king. AP Racing is up there too.

Brembo
AP
Alcon
Wilwood

its all about project and endless....performance wise, stoptech is actually better then rotora for the G, however, rotora has an 8 piston kit with 15-16 inch rotors coming out very very soon....of course you will need 20s