Why not ask Steeda?
Just went through lowering my 2011 last week with an earlier set up(2005-2010). 2011's use different front springs, struts and mounts than the previous years. If you change one out you have to convert the whole unit.
Hi there, no they are not.
555-8120 will only fit 2005-2010 models. The reason for this is not cause it wont bolt up to the vehicle, but because Ford changed the factory strut mount, and our 555-8120 uses one part from the original strut mount that cannot be transfered on the 2011 because its completely different.
The front struts are different as well, but you can put good struts in the front if you wish, you just need to get a 2010 factory upper strut mount, you just would not have camber adjustment with it.