3 There are basically two ways to R&R the stock and Corsa mufflers. You can either leave the rubber mounting insulators in place on the car and pull the mufflers off of them, or unbolt the hangers from the car and have the stock muffler come with them. You can then reinstall the hangers, followed by sliding the new Corsa mufflers in place onto the insulators. We chose the latter because it’s easier to separate the insulators (which are used with the Corsa mufflers) from the stock mufflers with them out of the car. The unbolting of the rear hanger is shown here.