[CFM Forum Support]

Their aren't any vendors that make rear brake upgrade kits that utilized the stock SVT components. TCE offers a rotor upsize for the SVT but it utilizes the stock SVT caliper.

Now something to consider about rear break upgrades. If you go to a bigger front caliper and then upgrade in the rear as well, you will most likely find your master cylinder is unable to create enough clamping force to either caliper and your stopping power will degrade.

So in short, if you do upgrade your front and rear calipers to something bigger, but do not upgrade your brake master cylinder your car will stop much worse than before and will be borderline dangerous in fast situations.