I purchased a used subframe and have removed the factory unit from my 2011 M3 with 38K miles.
The car which the subframe was removed from was not involved in an accident. This component was voluntarily removed so that I could more quickly install a different subframe with aftermarket components.
All original bushings are still installed and this subframe is ready for installation in a different M3 or you can use it to prepare for swapping subframe mounts, differential mounts and other suspension link bushings as I have done.
http://www.ebay.com/itm/222308011668...84.m1555.l2649