I am going to upgrade the front brake system to lighten the weight of wheels these days, so it will be 286mm two piece brake roter (forged aluminum center cap) and 4 piston calipers. I guess it will cut 3 Kg from the OEM one, but I worry this will chage the balance of the front and rear brake. Does anybody has experience could give me some information? Anything positive and any negative ? Will it cause the front drived down during brake due to heavy weight of 164?