[hmmmkoi]

Hi,

Looking to get some advice on a big brake kit.

I know what size I will be going for on the front - 356mm x 32mm.

My question is what size I should be going for on the rear?

My options are 330mm x 32mm OR 356mm x 32mm. The difference in cost is only £80.

My concern is if I were to go for the 356 on the front and rear, would it adversely affect my brake bias?

My car is an E92 330i. Stock brakes are (330mm Front & 336mm Rear).

Also, will I be required to upgrade the master cylinder to the M3 one?

Thanks in advance.