Bilstein B16 (DampTronic) suspension kits feature ride height adjustability with dampers compatible with OE electronic damping systems. All of the active features of the factory electronic suspension, along with the factory controls, will be retained with the installation of this kit. These kits offer monotube performance dampers with matched springs that are tuned for each specific application. The zinc coated and threaded body design will give you the flexibility to find the perfect ride height setting for your intended use while providing unsurpassed protection against the harshest road elements. B16 (DampTronic) suspension kits are made in Germany and feature technology tested on the famed Nurburgring. Mercedes-Benz SL63 AMG 2015-2013; SL65 AMG 2015-2013; SL550 2015-2013 Mercedes-Benz SL63 AMG 2017-2013, SL65 AMG 2017-2013, SL400 2016-2015, SL450 2017, SL550 2017-2013