Fitted the 400mm front and 380mm rear brakes from the M2cs. The braking performance is just astonishing compared to the standard m2 blue brakes but comes with a trade of adding unsprung weight. I'm waiting for my race brake builder to finish his CCB's for these callipers as the factory ones do crack or damage easily and unless I get the stock ones really cheap, I'll be waiting on him to come up with something at a fraction of the cost. Here is a comprehensive list of the stock brakes and their weights, I also added CCB's and my race brake setup from Albert racing which served me really well for a number of years and are still in perfect condition. Stock 1m Callipers and rotors Stock front calliper 5.9kg or 13 lbs. Stock rear calliper 4kg or 12.02 lbs. 360x30mm front rotor - 10.21kg or 22.5 lbs. 350x24mm rear rotor - 8.8kg or 15.5 lbs Front brakes per corner 16.11kg or 35.52 lbs. Rear brakes per corner 12.8kg or 28.22 lbs F87 Blue Brakes Blue front calliper - 4.890 kg or...