I know a lot of people are replacing their stock rotors with the T-Drive or Braketech in 320 or 330mm. As an option check out the TK SBK rotors. Direct replacement for the V4-V2 in 330mm. Very cool design with a bit of tech in there. Currently used by several WSBK/BSB teams and Kyle Wyman. Competitively priced with Brembo and Braketech. Mariani at TK is an exceptional individual. Top shelf stuff here