Product Details
These BC Racing ZR Series coilovers fit the 2008-2013 BMW M3 RWD w/o EDC. They deliver the deepest damping adjustability in BC Racing's lineup, with Swift Springs included standard and three axes of independent tuning for competitive track programs. Every kit is extensively tested on the M3 chassis and refined until it balances ride quality with performance, the reason M3 coilovers from BC Racing are the best-selling adjustable kits in their segment worldwide.
ZR Series kits use an inverted mono-tube damper with a linear twin-piston design, feeding three independent adjustment circuits. Swift Springs come standard, not as an upgrade, and the kit is race-tuned out of the box. 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 M3 coilovers arrive tuned for the M3 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 rebound adjustment
- 15-level low-speed compression adjustment
- 12-level high-speed compression adjustment
- Inverted mono-tube damper with twin-piston design
- Swift Springs come standard
- 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.
- Custom spring rates and custom valving available at checkout
- Fully rebuildable, replacement parts available from BC for the life of the shock
- 2-year manufacturer warranty against defects
Specifications
| Part Number | I-39-ZR |
| Part Name | ZR Series Coilovers |
| Vehicle | 2008-2013 BMW M3 |
| Drivetrain | RWD |
| Chassis Code | E90/E92 |
| Damping Adjustment | 3-Way (30 levels rebound/15 LSC/12 HSC) |
| Ride-Height Adjustable | Yes |
| Spring Rate - Front | 6 kg/mm |
| Spring Rate - Rear | 10 kg/mm |
| Spring Size - Front | 62-160-6K |
| Spring Size - Rear | 62-230-10K |
| Swift Springs - Front | 62-152-X |
| Swift Springs - Rear | 62-228-X |
| Top Mounts - Front | Camber Plates |
| 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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Fitment for BMW M3 coilovers
Fits the 2008-2013 BMW M3 RWD w/o EDC. Only fits models without OEM EDC. Each model year is listed below.