Hi,
I have a brand new driver side front 135i brake caliper. The caliper has never been installed, and is still in its original packaging. I was able to fix my current caliper and didn't need to install the replacement after all. This brand new part from ECS (lowest I found) retails for $563, so I am selling this one for $350.
I will try and post pics of it sometime this weekend. This is a pretty good deal for anyone looking at brand new parts or trying to piece a system together!