CORSAs Patented Reflective Sound Cancellation® (RSC) Technology allows acoustic engineers to create a drone free exhaust sound, styled specifically to fit the personality of your vehicle. Each system is designed to increase vehicle performance, deliver an AGGRESSIVE SOUND under acceleration and a DRONE-FREE EXPERIENCE during cruise. Performance gains are not affected by sound choice. Sport Axle-Back Exhaust System; Dual Rear Exit; 3 in. Dia; Incl. Muffler/Pipes/Clamps/Twin 4 in. Polished Pro-Series Tips; 12-16 M6 F12;13;06 4.4L Fitment: 2012 BMW M6 Base 2013 BMW M6 Base 2014 BMW M6 Base 2014 BMW M6 Gran Coupe Base 2015 BMW M6 Base 2015 BMW M6 Gran Coupe Base 2016 BMW M6 Base 2016 BMW M6 Gran Coupe Base 2017 BMW M6 Base 2018 BMW M6 Base 2018 BMW M6 Gran Coupe Base