Bilstein Motorsports Tuning Suspension Front Left Strut Assembly for 1965-1989 Porsche 911Bilstein Motorsports Dampers for the 1965 1989 Porsche 911 are designed as a direct fit solution for a variety of motorsports applications. Each damper features monotube technology with proprietary spring steel valve discs tuned specifically to each application for superior on track handling and control. Bilstein Motorsports Dampers are ideal for racers requiring a direct fit solution with true race proven performance. Standard Features Bilstein gas