BC Racing BMW Suspension Parts

BC Racing ER Series Coilover Suspension Kit - F31 (3-Bolt Top Mounts)...

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T#:51320838

Part#: I-114-ER

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$ 1,955.00 USD

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$ 1,955.00 USD

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For the F31 Touring owner looking to dominate the track while maintaining a refined street presence, the BC Racing ER Series offers a "motorsport-first" engineering approach. The inverted-style front struts (on applicable MacPherson designs) and external canisters move the weight of the fluid away from the hubs, reducing unsprung weight and improving the suspension's ability to react to high-speed road imperfections. The system includes bearing-mounted upper spring platforms to eliminate spring "binding" or popping during tight maneuvers. With its massive range of adjustability and robust build quality, the ER Series transforms the F31 wagon into a highly capable, predictable, and remarkably fast track machine. Key Features: Reduced Unsprung Weight: Strategic component placement allows the wheels to track road surfaces more effectively for increased grip. Advanced Damping Control: 30 clicks of compression (on the reservoir) and 30 clicks of rebound (on the shock top) for 900 possible damping combinations. Pillowball Top Mounts: Eliminates the "mushy" feel of factory rubber bushings, providing direct and unmediated feedback to the driver. Concave Lower Locking Ring: BC Racing's patented design prevents the lower mounts from vibrating loose even under extreme track vibration. Serviceable Design: All components are individual and fully replaceable, making the system a long-term investment for the life of the vehicle. Specifications: Vehicle Fitment: 2012–2019 BMW 3-Series (F31) Touring / Wagon (Models with 3-Bolt Top Mounts). Spring Rates (Default): Front: 6 kg/mm | Rear: 10 kg/mm. Spring Type: High-strength SAE9254 cold-wound steel springs. Adjustability: Independent ride height, independent spring preload, and independent 2-way damping. Warranty: 2-Year limited manufacturer's warranty against defects.

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BC Racing DS Series Coilover Suspension Kit - 3-Bolt Top Mounts - F30...

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T#:36811813

Part#: I-41-DS

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$ 1,415.00 USD

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$ 1,415.00 USD

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BC Racing's new proprietary digressive piston design offers increased damping force at low piston velocities while maintaining a linear damper feel at higher piston velocities. One of the greatest advantages of increased low-speed damping force relates to what the driver feels, e.g., roll, pitch, dive, and quick weight transitions on technical road courses. For The Ultimate In Driver Feel - Choose BC Racing DS Series Coilovers.

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BC Racing DS Series Coilover Suspension Kit - BMW F26 X4 xDrive ...

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T#:36811825

Part#: I-66-DS

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$ 1,395.00 USD

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$ 1,395.00 USD

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BC Racing's new proprietary digressive piston design offers increased damping force at low piston velocities while maintaining a linear damper feel at higher piston velocities. One of the greatest advantages of increased low-speed damping force relates to what the driver feels, e.g., roll, pitch, dive, and quick weight transitions on technical road courses. For The Ultimate In Driver Feel - Choose BC Racing DS Series Coilovers.

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BC Racing DS Series Coilover Suspension Kit - BMW F44 228i FWD ...

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T#:46753518

Part#: I-155-DS

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$ 1,415.00 USD

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$ 1,415.00 USD

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The DS series from BC racing offers increased control and feedback for those looking to achieve the best driving experience possible. Digressive Valving means the shock is firmer at low speed, while transitioning to a softer and more linear feel as (shaft) speed increases. This leads to a much more planted and controlled feeling in the chassis, increased feedback through the wheel, and a slight drop in passenger comfort.

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BC Racing ER Series Coilover Suspension Kit - BMW E91 E93 Non-M RWD ...

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T#:47439406

Part#: I-17-ER

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$ 1,955.00 USD

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$ 1,955.00 USD

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The BC Racing ER Series Coilover System is the next evolution in your suspension tuning and vehicle setup needs. The ER Series offers 30-clicks of independently adjustable compression and rebound with remote reservoirs to increase oil capacity and help with faster heat dissipation. Each ER Series Coilover System undergoes the same rigorous testing and development as the coilover series that precede it, with the addition of more extensive real-world track testing. For racers and enthusiasts that are looking for more adjustability in terms of varying compression and rebound settings, look no further than the BC Racing ER Series Coilover System.

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BC Racing DS Series Coilover Suspension Kit - 5-Bolt Top Mounts - F30...

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T#:47439397

Part#: I-82-DS

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$ 1,415.00 USD

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$ 1,415.00 USD

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BC Racing's new proprietary digressive piston design offers increased damping force at low piston velocities while maintaining a linear damper feel at higher piston velocities. One of the greatest advantages of increased low-speed damping force relates to what the driver feels, e.g., roll, pitch, dive, and quick weight transitions on technical road courses. For The Ultimate In Driver Feel - Choose BC Racing DS Series Coilovers.

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BC Racing RM Series Coilover Suspension Kit - E82 128i 135i

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T#:47439381

Part#: I-11-RM

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$ 1,515.00 USD

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$ 1,515.00 USD

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The BC Racing RM Series Coilover System uses a mono-tube inverted damper in the front and rear of vehicles that use McPherson style OEM strut suspension. On vehicles that use front struts only, BC Racing provides an inverted front strut and then provides an upright BR Series damper for the rear. Inverted dampers are useful in decreasing unsprung weight by moving the greatest mass of the strut to the top where it connects to the sprung weight of the chassis, where weight can be more easily shaved. The BC Racing RM Series Coilover System uses a much larger inverted piston shaft that can handle higher lateral loads for longer periods of time without fatigue. These higher lateral loads are only prevalent on McPherson style strut suspension, not on Double A-Arm vehicles.

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BC Racing DS Series Coilover Suspension Kit - BMW E93 M3 without EDC ...

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T#:46753509

Part#: I-154-DS

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$ 1,415.00 USD

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$ 1,415.00 USD

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The DS series from BC racing offers increased control and feedback for those looking to achieve the best driving experience possible. Digressive Valving means the shock is firmer at low speed, while transitioning to a softer and more linear feel as (shaft) speed increases. This leads to a much more planted and controlled feeling in the chassis, increased feedback through the wheel, and a slight drop in passenger comfort.

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DS Series Coilover Suspension Kit - 55mm Front Strut (Weld-In) - E34 ...

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T#:47439370

Part#: I-28-DS

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$ 1,415.00 USD

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$ 1,415.00 USD

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BC Racing's new proprietary digressive piston design offers increased damping force at low piston velocities while maintaining a linear damper feel at higher piston velocities. One of the greatest advantages of increased low-speed damping force relates to what the driver feels, e.g., roll, pitch, dive, and quick weight transitions on technical road courses. For The Ultimate In Driver Feel - Choose BC Racing DS Series Coilovers.

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E46 HM Series Coilover Suspension Kit

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T#:4319923

Part#: I-02-HM

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$ 2,535.00 USD

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$ 2,535.00 USD

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BC Racing's HM Coilover system offers the same great benefits of the RM Series with the addition of 2 way damping adjustment. Each HM Coilover system features inverted mono-tube dampers with independently adjustable compression and rebound. The inverted damper design moves vital damper fluid away from detrimental heat sources to avoid overheating which can cause damper fade under extreme track use. Know your safe from the elements! The damper units are black chromed steel to give superb durability even through the darkest of European winters. The aluminum components (top mounts, locking collars etc.) are anodized and the steel lower mounts go through an electrophoretic disposition process followed by powder coating. A random selection of steel components (brackets, dampers, screws etc.) are put through a salt spray test once a month to check the quality of the protective processes and that anti corrosive properties are kept at the highest possible standard. Features: Engineered for 100% track use * 30 levels of separate rebound and compression adjustment * Inverted damper design (depending on models) * Dual Piston design (1 res., 1 in shock) * Teflon coated steel braided lines for external reservoir on inverted dampers and solid stem for double A-arm cars Custom spring rates available * Completely rebuildable * Monotube damper design * Patented concave lower locking collar * 1 year manufacturer warranty NOTE: LEAD TIMES FOR ALL NEW ORDERS ARE 4-8 WEEKS.

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BC Racing DS Series Coilover Suspension Kit - E89 Z4

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T#:51356035

Part#: I-111-DS

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$ 1,415.00 USD

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$ 1,415.00 USD

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For the serious BMW enthusiast, the BC Racing DS Series for the E89 Z4 offers a "no-compromise" approach to suspension geometry and thermal stability. By utilizing high-strength SAE9254 cold-wound steel springs, this system provides a highly consistent spring rate that resists deformation over long-term use. The digressive damping architecture is specifically tuned to stabilize the Z4’s low-slung chassis, providing sharp turn-in and unmediated steering feedback. Every DS Series kit is hand-assembled and fully rebuildable, featuring bearing-mounted spring platforms to eliminate "spring binding" or popping noises during low-speed maneuvers. Key Features: Enhanced Body Control: Targeted damping profile specifically reduces the "wallow" and float associated with factory suspension. Pillowball Top Mounts: High-quality aluminum alloy mounts provide direct driver feedback and eliminate factory rubber compliance. Patented Locking Ring: Features a concave lower locking ring that prevents the system from vibrating loose even under track conditions. Customization Ready: Fully compatible with custom spring rates and Swift Spring upgrades for tailored track setups. Fully Rebuildable: All components are individual and replaceable, ensuring the long-term serviceability of the system. Specifications: Vehicle Fitment: 2009–2016 BMW Z4 (E89). Spring Rates (Default): Front: 5.5 kg/mm | Rear: 9 kg/mm. Hardware: Black chromed steel shock bodies with anodized 6061-T6 aluminum components. Damping Range: 30-Way Simultaneous (Compression/Rebound). Build Type: Hand-assembled with 1.5mm wall thickness TIG-welded brackets.

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BR Series Coilover Suspension Kit

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T#:50731694

Part#: I-122-BR

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$ 1,215.00 USD

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$ 1,215.00 USD

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If you’re stepping into coilovers for the first time and refuse to trade comfort for capability, the BC Racing BR Series is one of the most well-rounded systems you can bolt on. Extensive chassis-specific R&D and real-world validation mean the setup arrives ready to perform — comfortable enough for daily duty, composed when the pace increases. BC selects spring rates to maintain ride quality while still delivering the body control enthusiasts expect. Combine that with matched damper valving and a wide adjustment range, and you get a package that adapts easily to street driving, back road runs, or time spent at the circuit. A mono-tube damper layout helps maintain consistency as temperatures rise, and the linear piston profile keeps feedback predictable near the limit. Because ride height is adjusted separately from preload, you can fine-tune stance without reducing usable suspension travel. Thirty clicks of combined compression and rebound adjustment give you meaningful flexibility — compliant for commuting, disciplined for competition. Highlights Highly configurable system 10KG front / 5KG rear spring rates Mono-tube shock construction Linear piston and damping behavior Independent ride height adjustment 30-step compression/rebound tuning Front camber plates included where applicable Rear camber options available for select vehicles Alternate spring rates and Swift upgrades available Optional custom valving Fully rebuildable design Covered by a 2-year manufacturer warranty

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BC Racing BMW Suspension Parts

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BC Racing ER Series Coilover Suspension Kit - F31 (3-Bolt Top Mounts)...

BC Racing DS Series Coilover Suspension Kit - 3-Bolt Top Mounts - F30...

BC Racing DS Series Coilover Suspension Kit - BMW F26 X4 xDrive ...

BC Racing DS Series Coilover Suspension Kit - BMW F44 228i FWD ...

BC Racing ER Series Coilover Suspension Kit - BMW E91 E93 Non-M RWD ...

BC Racing DS Series Coilover Suspension Kit - 5-Bolt Top Mounts - F30...

BC Racing RM Series Coilover Suspension Kit - E82 128i 135i

BC Racing DS Series Coilover Suspension Kit - BMW E93 M3 without EDC ...

DS Series Coilover Suspension Kit - 55mm Front Strut (Weld-In) - E34 ...

E46 HM Series Coilover Suspension Kit

BC Racing DS Series Coilover Suspension Kit - E89 Z4

BR Series Coilover Suspension Kit

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