BMW 3 SERIES (45mm) (Rear Integrated) E30 (82-91) BC Racing DS Series Coilovers | 5.5/5kg.mm

BMW 3 SERIES (45mm) (Rear Integrated) E30 (82-91) BC Racing DS Series Coilovers | 5.5/5kg.mm

The BC Racing DS Series Coilovers for BMW 3 SERIES (45mm) (Rear Integrated) E30 (82-91) deliver precision suspension tuning with a spring rate of 5.5/5kg.mm, engineered to enhance handling dynamics and ride quality on classic and modified platforms. These coilovers feature fully adjustable damping and ride height, allowing drivers to fine-tune their suspension setup for both road and track applications. BC Racing's DS Series is built with quality construction and performance-focused engineering, making it an essential upgrade for enthusiasts seeking professional-grade suspension control.

BC Racing DS Series Coilovers

The BC Racing DS Coilover system is built with digressive valving, offering the same great benefits of the BR Series and is considered a perfect choice for those looking for track-biased coilovers. The digressive piston design produces a non-linear damping curve — allowing higher low-speed damping to control body roll through cornering, acceleration and braking, while providing reduced high-speed damping to allow the wheel to travel when running kerbs, preventing the impact from transmitting fully into the shell and retaining car balance.

Key Features

• Digressive piston and damping curve
• Satin chrome finished shock body
• 30 clicks of simultaneous rebound and compression adjustment
• Ride height adjustment separate to spring preload
• Monotube damper design
• Pillowball top mounts (depending on model)
• Bearing mounted upper spring platform
• Camber adjustable top mounts (depending on model)
• Tapered bottom mount locking collar to prevent collar working loose
• Custom spring rates available
• All spare parts available with low lead times
• Dust boot to protect damper seals
• 1 year manufacturer warranty

Digressive Piston Valving

Unlike a conventional linear piston, the DS digressive design increases damping force at low piston velocities — the range associated with body roll, pitch and dive during driven inputs — while reducing damping force at high piston velocities, such as when a wheel travels over a kerb. This keeps the car stable during cornering loads while allowing impacts to be absorbed without upsetting the chassis balance.

Kit Specifications

• Fitment: BMW 3 SERIES (45mm) (Rear Integrated) E30 (82-91)
• Spring Rate: 5.5/5kg.mm
• 30-Way Combined Damping Adjustment
• Monotube Damper Design
• Full Ride Height Adjustment (via Bottom Mount)
• Adjustable Spring Platforms for Corner Weighting
• Tapered Bottom Mount Locking Collar
• Custom Spring Rates Available
• All Spare Parts Available
• 1 Year Manufacturer Warranty