Audi A4 SEDAN FWD (strut 48.5mm) B9 (16+) BC Racing DS Series Coilovers | 10/8kg.mm

Audi A4 SEDAN FWD (strut 48.5mm) B9 (16+) BC Racing DS Series Coilovers | 10/8kg.mm

The BC Racing DS Series Coilovers for Audi A4 SEDAN FWD (strut 48.5mm) B9 (16+) deliver precision suspension tuning with a 10/8kg.mm spring rate, engineered to enhance handling response and ride quality on UK roads. These coilovers feature fully adjustable damping and ride height settings, allowing drivers to dial in the perfect setup for both daily driving and spirited performance. BC Racing's DS Series combines proven motorsport technology with street-friendly reliability, making it an ideal choice for A4 sedan enthusiasts seeking serious suspension upgrades.

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: Audi A4 SEDAN FWD (strut 48.5mm) B9 (16+)
• Spring Rate: 10/8kg.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