Product Details
BC Racing ZR Series Coilovers for the 2014-2015 BMW M4 (F82) 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 F82 chassis and refined until it balances ride quality with performance — the reason M4 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's reputation in the aftermarket suspension world is built on four things: competitive pricing that beats the rest of the fully-adjustable market, customization depth that rivals the top-tier race brands, long-term reliability earned over 20 years of production, and a rebuildable design that keeps the same set of dampers serving you through multiple builds. These M4 coilovers arrive tuned for the F82 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-49-ZR |
| Part Name | ZR Series Coilovers |
| Vehicle | 2014-2015 BMW M4 (F82) |
| Drivetrain | RWD |
| Chassis Code | F82 |
| Damping Adjustment | 3-Way (30 levels rebound/15 LSC/12 HSC) |
| Ride-Height Adjustable | Yes |
| Spring Rate - Front | 6 kg/mm |
| Spring Rate - Rear | 12 kg/mm |
| Spring Size - Front | 62-180-6K |
| Spring Size - Rear | 62-210-12K |
| Swift Springs - Front | 62-152-X |
| Swift Springs - Rear | 62-203-X |
| Camber Plates - Front | Included |
| Camber Plates - Rear | Not Applicable |
| Suspension Design - Front | True Coilover |
| Suspension Design - Rear | Divorced |
| Notes |
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Vehicle Fitment
- 2014 BMW M4 RWD (F82)
- 2015 BMW M4 RWD (F82)