Can you fit a 11-14 mustang gt exhaust on a 14 mustang v6?

To make it fit what would I need and would it sound the same I wanted to get the ford racing gt500 style

Not sure why you want to, the GT has an H pipe which is a slightly more restrictive than the V6's standard X pipe. Putting the GT exhaust on a V6 isn't going to make it magically sound like a V8 or anything, if that's what you were going for.

It will never sound the same. Engines with different firing orders, angles and cylinder numbers always sound different. No matter how free the exhaust system is, the V6 will always have that metallic tin noise at the higher register.

Ford Racing makes a V6 exhaust kit. I think it adds 20-26 ft-lbs of torque. It comes with a free flow air filter and computer controller. It's much easier to fit than trying to cobble your own stuff together. It has a warranty (covers remaining factory warranty on car) and you are guaranteed not to throw any codes.