Hey Tha Kidd. To be honest with you this is my first mustang and mine is a 2008. I don't know about the exhaust on the 2013 or 14. There are a lot of good guys in the Carolina chapter that could help with this question if you want to post it there. No one will be rude and I'm sure they could give you the best answer on your question. Good luck man. Beautiful car by the way.