Product Details
These BC Racing DS Series coilovers fit the 2017-2024 Audi A4 FWD/AWD (B9) w/EDC 53mm Front Strut. They blend street-tuned ride quality with track-ready adjustability, giving you more body control than any OEM damper without the harshness of a pure race kit. Every kit is developed specifically for the Audi B9 A4 and refined to balance ride quality with performance, which is why BC coilovers are the best-selling adjustable kits in their segment worldwide.
DS Series kits pair a mono-tube damper with BC's proprietary digressive piston design, increased low-speed damping for flat corner entry, compliant high-speed response over expansion joints and potholes. The finished shock body is silver, visually distinct from the BR Series, and ride height is adjustable independent of spring preload. The off-the-shelf setup from BC Racing is deliberately balanced, spring rates and valving chosen so the kit feels comfortable day-to-day without giving up performance when you push it. Drivers who want a different recipe can spec Swift Springs, custom spring rates, or fully custom valving at checkout; BC will tune the dampers to match, which is a depth of customization most brands only offer on their top-tier kits.
BC Racing has been manufacturing adjustable coilovers since 2004 and is one of the most popular coilover brands in the automotive tuning industry for a reason: competitive pricing, deep customization, proven reliability, and a fully rebuildable damper design that lasts years instead of seasons. These BC Racing B9 A4 coilovers arrive ready to bolt in, with no break-in period and no guessing at setup. Every kit ships with a 2-year manufacturer warranty, lifetime access to BC service parts (pistons, seals, shafts, no unit replacement required when it's time for a rebuild), and in-house tech support from both BC Racing and the Springrates team.
Features
- 30-level simultaneous compression/rebound damping adjuster
- Mono-tube damper with BC's proprietary digressive piston
- Silver satin-chrome finished shock body (visually distinct from the BR Series)
- Ride height adjustable independent of spring preload
- Upper mount hardware varies by chassis, camber plates, pillowball, or reused OEM mounts. See the Specifications table for what's included on your kit.
- Swift Spring and custom spring rate upgrades available at checkout
- Custom damper valving paired with custom spring rates on request
- Fully rebuildable, replacement parts available from BC for the life of the shock
- 2-year manufacturer warranty against defects
Specifications
| Part Number | S-35-DS |
| Part Name | DS Series Coilovers |
| Vehicle | 2017-2024 Audi A4 |
| Drivetrain | FWD/AWD |
| Chassis Code | B9 |
| Damping Adjustment | 1-Way (30 levels) |
| Ride-Height Adjustable | Yes |
| Spring Rate - Front | 10 kg/mm |
| Spring Rate - Rear | 8 kg/mm |
| Spring Size - Front | 62-220-10 |
| Spring Size - Rear | 62-190-8-S |
| Swift Springs - Front | 62-203-X |
| Swift Springs - Rear | 62-178-X |
| Top Mounts - Front | Aluminum Mounts with Rubber Bushings |
| Top Mounts - Rear | Reuses OEM Mounts |
| Rear Damping Extenders | Not Compatible |
| Suspension Design - Front | True Coilover |
| Suspension Design - Rear | Divorced |
| Notes |
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