The Bilstein B4 twintube rear shock is an OE-replacement damper built to return factory ride comfort and handling while meeting or exceeding OE standards. This rear unit emphasizes precise construction, high power reserves, and reliable OE quality for driving comfort and safety. It’s specified for 2003–2006 Porsche Cayenne applications and for select 2004–2010 Volkswagen fitments as a direct replacement.
Bilstein B4 03-06 Porsche Cayenne / 04-10 Volkswagen Rear Twintube Shock Absorber