MisaelisDGK

Is it possible to fit parts like bumpers, side skirts, dual exhaust systems, trunks, hoods, or anything else from a 05-09 GT to a 05-09 V6??

jimkaray

Yes, some parts will need supporting components but nothing major until you get into the drive train.
This is the wrong place for these questions however. You'll want to search and post in the V6 specific forums under the 2005-2014 Mustang category on this site for all you'll need to know.