Removing
1. We prepare the car for work (see "Preparing the car for maintenance and repair").
2. socket wrench by 13 mm unscrew the two bolts of the movable hinge and remove the metal-graphite ring (see "Metal-graphite sealing ring - replacement").
3. Ring wrench by 17 mm unscrew the nuts of the two bolts securing the converter to the flange of the additional muffler, holding the bolts with a wrench of the same size (see above, "Additional muffler - replacement").
4. Remove the converter.
Installation
Install the catalytic converter in reverse order.