Bilstein B6 Performance dampers are a performance upgrade to OE dampers designed to be paired with the OE factory spring. These dampers offer application specific valve settings with a monotube design to bring out the best handling performance of a vehicle. Each damper is rigorously tested for quality that meets or exceeds OE standards. B6 Performance dampers will provide improved safety and handling performance with the added benefit of world-famous Bilstein quality. 46mm Monotube Shock Absorber What's Included: Bilstein B6 Performance 12-15 Porsche 911 Rear Monotube Shock Absorber Vehicle Fitment: 2012-2016 Porsche 911 Carrera 2012-2016 Porsche 911 Carrera 4 2012-2015 Porsche 911 Carrera 4S 2015 Porsche 911 Turbo 2012-2015 Porsche 911 Carrera S 2015 Porsche 911 Turbo S 2014-2016 Porsche 911 Targa 4 2015 Porsche 911 Targa 4S 2012 Porsche 911 Carrera GTS 2015 Porsche 911 Carrera GTS 2012 Porsche 911 Carrera 4 GTS 2015-2016 Porsche 911 Carrera 4 GTS 2016-2016 Porsche 911 Carrera 4 Black Edition