Product Details
BC Racing RM Series Coilovers for the 2004-2012 Volvo S40 (P11) are purpose-built for McPherson-strut cars that see serious track time, with an inverted mono-tube damper engineered to outlast a hard season of lateral loads. Every kit is extensively tested on the S40 (P11) chassis and refined until it balances ride quality with performance — the reason S40 (P11) coilovers from BC Racing are the best-selling adjustable kits in their segment worldwide.
The RM Series inverts the mono-tube damper on strut-equipped chassis, putting the heavy internals where the lateral loads are worst. A wider piston shaft than conventional uprights means more consistent damping on long sessions and more fatigue life before rebuild. Where BC Racing separates itself is tuning philosophy: every off-the-shelf spring rate and damper setup is chosen to stay comfortable on daily roads while still delivering real performance at the track. If you want something different, Swift Springs, custom rates, and custom valving are all options at checkout — BC will match the valving of the dampers to whatever springs you pick, something most brands don't offer outside their flagship race lineup.
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 S40 (P11) coilovers arrive tuned for the S40 (P11) chassis and ready to bolt in — no break-in period, 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
- Inverted mono-tube damper (front) with oversized 46 mm piston shaft
- Handles higher lateral loads on McPherson-strut applications
- 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 | ZG-14-RM |
| Part Name | RM Series Coilovers |
| Vehicle | 2004-2012 Volvo S40 AWD |
| Drivetrain | AWD |
| Damping Adjustment | 1-Way (30 levels) |
| Ride-Height Adjustable | Yes |
| Spring Rate - Front | 6 kg/mm |
| Spring Rate - Rear | 190 kg/mm |
| Spring Size - Front | 62-200-6K |
| Spring Size - Rear | 62-85-190K |
| Swift Springs - Front | 62-178-X |
| Camber Plates - Front | Included |
| Camber Plates - Rear | Not Applicable |
| Suspension Design - Front | True Coilover |
| Suspension Design - Rear | Divorced |
Vehicle Fitment
- 2004 Volvo S40 AWD
- 2005 Volvo S40 AWD
- 2006 Volvo S40 AWD
- 2007 Volvo S40 AWD
- 2008 Volvo S40 AWD
- 2009 Volvo S40 AWD
- 2010 Volvo S40 AWD
- 2011 Volvo S40 AWD
- 2012 Volvo S40 AWD


