Bilstein MDS (Modular Damping System) dampers are a premium motorsports product designed for professional road racing. The 2-way independent compression and rebound adjustment system provides 100 different setting variations for the ultimate in handling performance. The Easy Clip System (ECS) spring retainer system allows for rapid spring changes for easy at the track suspension tuning. MDS dampers are ideal for full-race car applications that demand exceptional versatility and fine tuning for track conditions. Bilstein MDS dampers provide proven performance and have taken many race cars to victory at races such as the 24 Hours of Le Mans and the 24 Hours of Nurburgring. PartNumber : bilF4-VSE-0068405 Description : MDS - Shock Absorber Lower Mount Type : 15mm heim Title : Bilstein Shock Absorbers Finish : Clear Anodized Series : MDS Internal Design : Monotube Boot Included : No Upper Mount Type : Stem Adjustable Damping : Double Adjustable – Compression and Rebound Body Design : Threaded Body Screw Top (Coilover) Body Diameter (ID) : 46mm Body Material : Aluminum Collapsed Length (IN) : 11.81 Collapsed Length (MM) : 300.1 Compression @0.52m/s : Adjustable Extended Length (IN) : 14.95 Extended Length (MM) : 379.7 Piston Type : Linear Position : Rear Rebound @0.52m/s : Adjustable Valving Identifier : N/A Adjustable Damping : Double Adjustable Compression and Rebound California Proposition 65 : WARNING: Cancer & Reproductive Harm - www.P65Warnings.ca.gov 2011 Porsche 911 GT2 RS H6.3600cc Suspension::Shocks and Struts 2011 Porsche 911 GT3 H6.3800cc Suspension::Shocks and Struts 2014-2015 Porsche 911 GT3 H6.3800cc Suspension::Shocks and Struts 2011 Porsche 911 GT3 RS H6.3800cc Suspension::Shocks and Struts 2011 Porsche 911 GT3 RS 4.0 H6.3996cc Suspension::Shocks and Struts