[BiscottiGelato]

I looked through this over and over again and it's still not clear. Everyone says that the M Performance Brakes has the same calliper, just different colour, as the stock M Sport Brakes. However M Perf has 370mm rotors where-as M Sport has 340mm rotors.

This means then one can upgrade to 370mm rotors with the stock M-Sport brakes with just a change of the bracket/adapter? True? Is there a part number for just the bracket/adapter?

This is a huge deal as this reduces on track brake fade. at about $450 a pair, these would be the cheapest 370mm rotors available. (360mm Brembo 2 piece rotors can easily cost $1k+) Don't get why this doesn't get more talked about rather than initial brake feel which actually makes no real performance difference.