The Bilstein B6 46mm monotube rear shock for 1999–2005 Porsche 911 Carrera is a direct-fit performance damper intended to be paired with the factory springs. Its monotube design and application-specific valving improve handling, grip and lane stability without requiring new springs. Bilstein's gas-pressure technology and OE-level testing deliver consistent damping and quality that meet or exceed original equipment standards.
Bilstein 99-05 Porsche 911 Carrera B6 Performance Monotube Shock Absorber - Rear