I don't think anyone has had to trim the rear wheel wells.

Front:

Everyone had to do some trimming

Some performed metalurgical deformation with a BFH

Some removed a bracket behind the cladding

It all depends on how much trimming you need. I personally need more since my wheel offset is so pronounced. The PO did a great job on the trimming but I need a little more & that means that I'll have to hammer or remove the bracket (hope not).