amg caliper
Why are you trying to put amg rear calipers on if you dont mind me asking? Do you have any upgrades done to the front brakes? From the factory, there is a bias towards more of the braking being done up front. Upgrading the rear brakes can upset this balance and lead to unwanted braking characteristics. This can possibly be dangerous, and even more so in rain/snow conditions. However, I have no idea where you live.
If you can, please give us some more details about this upgrade.


