To start this blog, we recently installed rear overfenders on to a S2000.  We had to cut out the rear quarter panels, re-weld the sheet metal back together, thread cert the fender flares on, and then a lot of trimming to eliminate scrubbing.  Unfortunately, the body shop that the customer used didn't match the paint so well.  Hopefully they will redo it for them...  Here are a few pics.  Enjoy!