How do you install headers on a 2013 5.0 mustang?

To install headers on a 2013 5.0 Mustang, first, ensure the vehicle is raised securely and the battery is disconnected. Remove the factory exhaust manifolds by detaching the exhaust pipes, unbolting the manifold from the engine, and removing any necessary components like heat shields. Install the new headers, making sure to use new gaskets and bolts, and then reattach the exhaust system. Finally, reconnect the battery and check for any leaks or issues before taking the car for a test drive.