Bilstein B8 Performance Plus (DampTronic) Suspension Rear Shock Absorber for 2005-2013 Porsche 911 633i Every kit is extensively tested

Every kit is extensively tested on the 9-3 chassis and refined until it balances ride quality with performance — the reason 9-3 coilovers from BC Racing are the best-selling adjustable kits in their segment worldwide

2019 Audi S5 AWD (w/ EDC)

14 Kg/mm (400 lbs/in) Spring Rates - Rear Progressive Quantity Full Set (Front & Rear) Notes Not for Vehicles with Automatic Level Control

2021 BMW Z4 (G29)

GT Chassis Code S197 Adjustable No Ball Joint Included No Bushing Color Black Bushing Material Polyurethane Bushings Included Yes Construction Tubular Control Arm Color Silver Control Arm Construction Tubular Control Arm Material Steel Grade Type Performance Grease Fitting Included No Installation Difficulty Moderate Installation Time (hrs) 2 Kit Contents 2 Arms Material Steel Pre-Assembled Yes Set Yes Suspension Grade Type Performance Vehicle Placement Rear Wheel Alignment Required Yes Notes Set of two fixed arms Vehicle Fitment

Bilstein B8 Performance Plus (DampTronic) Suspension Rear Shock Absorber for 2005-2013 Porsche 911 633i Every kit is extensively testedBilstein B8 Performance Plus (DampTronic) Dampers for the 2005 2013 Porsche 911 are a performance upgrade to OE Dampers designed to be paired with aftermarket lowering springs. All of the active features of the factory electronic suspension, along with the factory controls, will be retained with the installation of these Dampers. Each damper is rigorously tested for quality that meets or exceeds OE standards and features application specific valve