Only used 2 months. Went to a louder exhaust. Very nice OEM upgrade over the stock M5 exhaust. Does not include muffler tips since you reuse the existing muffler. You do need 2 clamps the BMW does not include with the exhaust , part number 18307560815 Butt-Butt Clamps
https://www.bmwpartsnow.com/oem-part...mp-18307560815