Bilstein B16 (PSS9) suspension kits feature ride height adjustability with 9-stage manually adjustable dampers in an OE quality, direct fit package. The 9-stage damping system adjusts both rebound and compression with each click to provide the best handling performance in any condition. These kits offer monotube performance dampers 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 (PSS9) suspension kits are made in Germany and feature technology tested on the famed Nurburgring. Porsche 911 2005-2004 Porsche 911 2005-2002