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BMW Coilovers

Coilovers provide more adjustability than a strut and spring setup and can serve a variety of different needs - it's important to be sure of what your suspension goals are. We have broken down our coilover catalog into street and track categories, this is not to say you can't use one of our aEURoestreetaEUR coilovers on the track, or vice versa, but it is to give you a starting point. Are you someone who is interested in getting your BMW lower than factory height for the aesthetic value and handling benefits in a daily driver? Check out our street category. The majority of these are priced to avoid breaking the bank, but providing a good value in terms of features and benefits. On the other hand, if you are putting together your vehicle with the track as its main purpose, take a look at our track coilovers category. We have hand selected these coilover brands as being more expensive coilovers built to hold up to abuse.

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AST Suspension - Corporate Logo
T#:38621397
Part#: RIV-B2104SD
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$ 6,714.00 USD
$ 6,714.00 USD
BC Racing - Corporate Logo
T#:49023077
Part#: C-165-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 precedes it, with the addition of more extensive real-world track testing. For racers and enthusiasts who 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 - Corporate Logo
T#:51356024
Part#: I-126-BR
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$ 1,215.00 USD
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$ 1,215.00 USD
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For the 2022+ BMW X1 owner looking for a robust and durable suspension upgrade, the BC Racing BR Series provides a "no-compromise" approach to build quality. The shock bodies are manufactured from TIG-welded heavy-gauge steel with a black chrome finish for maximum corrosion resistance, while the locking collars and top mounts are crafted from anodized 6061-T6 aluminum. This kit features high-strength SAE9254 cold-wound steel springs, designed to withstand rigorous use without losing their rate. By moving from factory rubber-isolated struts to a precision-valved coilover, the X1 gains sharper turn-in, reduced pitch during braking, and a significantly more connected feel to the road, transforming the SAV's driving dynamics into a more car-like experience. Key Features: Customization Options: Compatible with custom spring rates and Swift Spring upgrades for tailored track or heavy-load setups. In-House Testing: Each kit is extensively track-tested and refined to ensure the best possible balance for the U11 chassis. Bearing-Mounted Spring Platforms: Minimizes "spring binding" or popping noises during low-speed steering maneuvers. Patented Locking Ring: Features a concave lower locking ring that prevents the system from vibrating loose even under track conditions. Corrosion Protection: Finished in black chrome and anodized aluminum for durability in all weather conditions. Specifications: Vehicle Fitment: 2022+ BMW X1 (U11) AWD / xDrive. Spring Rates (Default): Front: 7 kg/mm | Rear: 13 kg/mm. Hardware: Black chromed steel shock bodies with 6061-T6 aluminum components. Build Type: Hand-assembled with 1.5mm wall thickness TIG-welded brackets. Service: Fully rebuildable with all replacement parts readily available.
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BC Racing - Corporate Logo
T#:555842
Part#: I-27-BR
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4% off MSRP $ 1,245.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,195.00 USD
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4% off MSRP
$ 1,245.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,195.00 USD
Free Shipping

Looking for coilovers that will provide reliability on street driven vehicles but are also capable of feeding your weekend track demon's desire for performance? BC Racing's BR Series coilover kit may be just the thing for you.

BR Series coilovers are the most popular and versatile option offered by BC racing, offering features such as 30-level dampening adjustment (simultaneous compression and rebound control), linear springs where possible, and a minimum of 2 inches ride height drop. To ensure performance, comfort, and quality, all BR Series kits are Dyno tested during the design stage to determine the best valving and spring rates, then installed and tested for a minimum of 6 months. This kit features mounts and brackets that are fully compatible with all stock mounting points and components.

The upper shock/strut mounts are all constructed of 6061-T6 Aluminum for strength and weight savings. BC Racing design 1 of 3 types of upper mounts for each vehicle: Caster/Camber Plates (+/- 3* camber), Camber Plates (+/- 3* camber), and Rubber Mount Plates (NVH reduction). The included mount option for this kit is shown in the kit specs and features below.

Lower shock mounts are powder coated for corrosion protection and constructed of either 6061-T6 aluminum that has been milled from a single piece (fork or bolt eye mount) or of STKM13C steel with all brackets welded robotically.

The included springs come in one of 3 styles: linear, S-barrel, and V-barrel. Linear springs are used in most applications unless limited by the OE design that does not allow the use of linear springs. All spring options are made from SAE9254 steel and have a zinc coating applied under the powder coating for increased spring corrosion protection and long term reliability.

All shock bodies used in the BR Series coilovers use a 53mm shock body (unless noted otherwise) for added strength, performance, and increased fluid capacity. All shocks are then powder coated black chrome for clean styling and corrosion protection.

Specs and Features:

  • 12k Front & 4.5k Rear Spring Rate
  • Linear front & V-Barrel rear springs
  • Valved specifically to spring style and rate
  • Aluminum and Rubber Front Mounts
  • Aluminum and Rubber Rear Mounts
  • Black Powder Coated Components
  • All OE style brackets and mounting for perfect fit
  • 30 Levels of Simultaneous Compression and Rebound Dampening
  • 2 inch minimum and 3+ Inches of total potential drop
  • Great for Track, Street, and any other conditions
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Bilstein - Corporate Logo
T#:56977991
Part#: 19-317410
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$ 98.00 USD
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$ 98.00 USD
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Regain sharp suspension feedback and precise chassis control with the Bilstein B4 OE replacement shock absorber.
BC Racing - Corporate Logo
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 - Corporate Logo
T#:47439434
Part#: I-130-BR
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$ 1,215.00 USD
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$ 1,215.00 USD
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The BC Racing BR Series offers the most affordable entry into coilover suspension without sacrificing performance, comfort, build quality, vehicle height, or handling. This is done by extensively testing each vehicle then refining the coilover characteristics as many times as needed to ensure the most well-balanced and affordable aftermarket suspension conceivable. BC Racing takes great pride in choosing spring rates for our off-the-shelf kits that strike the perfect balance between comfort and performance so you're never stuck with an oversprung suspension like many other brands sell. BC Racing offers one of the widest ranges of damping adjustment with 30-clicks of compression/rebound adjusted simultaneously on the BR Series. With meticulously chosen spring rates, damper valving, and one of the widest adjustment ranges in the industry, you can't go wrong with the BC Racing BR Series Coilover System.
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BC Racing - Corporate Logo
T#:4042164
Part#: I-94
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$ 1,410.00 USD
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$ 1,410.00 USD
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The BC Racing BR Series offers the most affordable entry into coilover suspension without sacrificing performance, comfort, build quality, vehicle height, or handling. This is done by extensively testing each vehicle then refining the coilover characteristics as many times as needed to ensure the most well-balanced and affordable aftermarket suspension conceivable. BC Racing takes great pride in choosing spring rates for our off-the-shelf kits that strike the perfect balance between comfort and performance so you're never stuck with an oversprung suspension like many other brands sell. BC Racing offers one of the widest ranges of damping adjustment with 30-clicks of compression/rebound adjusted simultaneously on the BR Series. With meticulously chosen spring rates, damper valving, and one of the widest adjustment ranges in the industry, you can't go wrong with the BC Racing BR Series Coilover System.
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BC Racing - Corporate Logo
T#:47576368
Part#: I-97-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 - Corporate Logo
T#:47439376
Part#: I-29-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 - Corporate Logo
T#:47576363
Part#: I-155-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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H&R - Corporate Logo
T#:374091
Part#: 36925-2
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$ 1,690.00 USD
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$ 1,690.00 USD
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H&R Street Performance SS Coil Overs are now available with polished stainless steel shock tubes. These new Coil Overs are shock damping adjustable—allowing personalized tuning of the shock setting to suit driving needs for high performance or comfort. Height adjustability is made possible by fully threaded shock bodies and easy to adjust spring seats / locking rings. H&R ride development engineers have precisely plotted the perfect shock damping curves of each application for optimized handling and superb ride comfort. To ensure the best quality available H&R has partnered with world-renowned shock absorber specialist KONI to manufacture the shocks.
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BC Racing - Corporate Logo
T#:47439374
Part#: I-80-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 - Corporate Logo
T#:4319917
Part#: I-11-DS
Back Ordered
2% off MSRP $ 1,445.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,415.00 USD
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2% off MSRP
$ 1,445.00

MSRP stands for Manufacturer's Suggested Retail Price. This is the suggested retail price provided by the manufacturer, supplier or seller.

$ 1,415.00 USD
Free Shipping

BMW E82 E88 DS Series Coilover Kit delivers an unparalleled driving experience by incorporating a proprietary digressive piston design that enhances low-speed damping force while maintaining a linear feel at higher velocities. Designed specifically for BMW E82 and E88 models, Turner Motorsport's coilover kit ensures a more planted and confident chassis with increased feedback through the steering wheel, making it ideal for both technical road courses and daily driving.

  • Proprietary Digressive Piston Design: Increases low-speed damping force for better control during roll, pitch, and quick weight transitions.
  • Highly Customizable: Tailor the coilover kit for any type of racing, from weekend track days to full-time competition.
  • Durable Construction: Black chromed steel and anodized aluminum components offer exceptional resistance to corrosion, even in harsh conditions.
  • Precision Engineering: Features like 30-clicks of simultaneous compression/rebound adjustment and independent height adjustment ensure optimal performance.
  • 1-Year Warranty: Includes a one-year warranty against manufacturer defects and is fully rebuildable for long-term use.
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BC Racing - Corporate Logo
T#:25009236
Part#: I-115-ER
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$ 1,985.00 USD
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$ 1,985.00 USD
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The ER Series coilovers bring with them the high quality and unique features seen on the BR and RM type but have the additional benefit of external reservoirs and the ability to allow the end user to individually adjust and set compression and rebound damping rates. By separating the adjustment for damping compression and rebound the ER Series allows you to dial the vehicle in to your exact needs. When braking hard whilst approaching a corner you want the car to transfer weight to the front tires to maximize grip for the braking effort and also to allow you to trail brake into the corner without the car understeering. Ride height adjustment: Ride height is determined by the position of the coil over bottom mount. The mount can be wound up and down the damper body to give a full range of adjustment. Because ride height is determined by an adjustable bottom mount rather than spring platform you retain full damper travel regardless of the ride height run. Know your protected from the elements! The damper units are black chromed steel to give superb durability even through the darkest of European winters. The aluminium components (top mounts, locking collars etc) are anodised 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: Highly Customizable Mono-Tube Damper Linear Twin-Piston Design Height Adjustment Independent Of Spring Compression 30-Clicks Of Compression Adjustment Via The External Reservoirs 30-Clicks Of Rebound Adjustment From The Top Of The Damper Front And Rear Camber Plates Standard On All Applicable Kits Front And Rear Pillowball Mounts Standard When Camber Plates Do Not Apply Custom Spring Rates And Swift Spring Compatible Custom Valved To Match The Drivers Requested Spring Rates Swift Spring Upgrade Available On Most Applications 1-Year Warranty Against Manufacturers Defect Fully Rebuildable NOTE: LEAD TIMES ON ALL NEW ORDERS 4-8 WEEKS
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BC Racing - Corporate Logo
T#:47439436
Part#: I-49-RM
Back Ordered
$ 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 - Corporate Logo
T#:47439430
Part#: I-61-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 - Corporate Logo
T#:51320857
Part#: I-90-ZR
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$ 2,865.00 USD
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$ 2,865.00 USD
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Designed for racers ranging from novice to pro, the BC Racing ZR Series addresses the unique weight distribution and chassis requirements of the E46 Convertible. The inverted front struts utilize a massive 42mm piston shaft, providing a rigid backbone that prevents geometry deflection under heavy braking and high-G cornering. By separating low-speed and high-speed compression, drivers can stiffen low-speed damping to eliminate body roll and pitch during turn-in while keeping high-speed damping compliant enough to absorb track curbing without upsetting the chassis. Every ZR kit is hand-assembled with TIG-welded steel and anodized 6061-T6 aluminum, providing a professional-grade motorsport component that is fully rebuildable and customizable. Key Features: Enhanced Low-Speed Damping: Specifically tuned to stabilize the E46’s heavier convertible chassis during quick weight transitions. Thermal Management: Remote-mounted external reservoirs move fluid away from hot brake components to ensure consistent lap times. Camber Adjustable Top Mounts: High-quality aluminum plates eliminate factory rubber "mush," providing direct, unmediated steering feedback. Bearing-Mounted Spring Platforms: Minimizes friction between the spring and perch to eliminate "spring binding" during tight steering. Industrial Corrosion Protection: Black chrome-plated steel shock bodies and electrophoretic disposition on steel mounts ensure a long service life. Specifications: Vehicle Fitment: 2000–2006 BMW 3-Series (E46) Convertible (All models except M3). Spring Rates (Standard): Front: 6 kg/mm | Rear: 10 kg/mm (Swift Springs). Piston Design: Linear Twin-Piston (Standard on 3-way kits). Weight: Approx. 23 kg (Full Kit). Warranty: 2-Year limited manufacturer's warranty.
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BC Racing - Corporate Logo
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 - Corporate Logo
T#:51320856
Part#: I-90-HM
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$ 2,565.00 USD
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$ 2,565.00 USD
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For the E46 Convertible owner looking to overcome the platform's inherent chassis flex and maximize track performance, the BC Racing HM Series offers a motorsport-first engineering approach. By utilizing an inverted strut layout and a high 12kg rear spring rate, the HM Series provides uncompromised geometry control under heavy cornering loads. The 2-way independent adjustment allows the driver to fine-tune high-speed stability and low-speed turn-in separately, which is critical for balancing a convertible's unique weight distribution. Every HM Series kit is hand-assembled with TIG-welded 304 stainless steel and 6061-T6 aluminum components, ensuring a system that is as durable as it is fast. Key Features: Enhanced Thermal Stability: External canisters move the fluid away from brake heat to maintain valving accuracy. Linear Twin-Piston Design: Provides a large surface area for precise and predictable damping response. Camber Adjustable Top Mounts: Precision-engineered aluminum plates eliminate factory rubber compliance for direct steering feedback. Independent Ride Height: Threaded shock bodies allow for height adjustment without sacrificing damper stroke or spring travel. Fully Rebuildable: All components are individual and replaceable, ensuring the long-term serviceability of the system. Specifications: Vehicle Fitment: 2000–2006 BMW 3-Series (E46) Convertible (Excludes M3). Spring Rates (Default): Front: 6 kg/mm | Rear: 12 kg/mm. Piston Design: Linear Twin-Piston. Construction: 304 Stainless Steel and Anodized 6061-T6 Aluminum. Warranty: 2-Year limited manufacturer's warranty.
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Bilstein - Corporate Logo
T#:56977996
Part#: 22-317407
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New Item
$ 133.00 USD
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$ 133.00 USD
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Eliminate sluggish suspension response and sharpen front-end control with Bilstein suspension engineering.

BC Racing - Corporate Logo
T#:50066868
Part#: I-153-ZX
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New Item
$ 2,595.00 USD
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$ 2,595.00 USD
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Take command of your chassis with BC Racing coilovers, featuring 6kg/mm front and 10kg/mm rear spring rates for a perfect balance of ride comfort and performance-oriented handling. Built around BC Racing’s monotube damper design, this coilover system provides sharper damping response, reduced body roll, and consistent feedback compared to factory suspension. The spring combination offers a compliant front end with a slightly firmer rear, promoting predictable handling and stable, confidence-inspiring performance for street and spirited driving. Independent ride height adjustment lets you dial in stance without compromising shock travel or ride quality. Matched springs and dampers work together to keep the car composed whether you’re commuting, carving back roads, or pushing hard on spirited drives. Why it stands out: Monotube dampers for consistent, reliable performance 6kg/mm front, 10kg/mm rear spring rates for balanced handling Fully independent ride height adjustment for precise setup Tuned for everyday driving with spirited performance capability Durable construction built for long-term use
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BC Racing - Corporate Logo
T#:47576369
Part#: I-97-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 - Corporate Logo
T#:46753507
Part#: I-151-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 - Corporate Logo
T#:51356016
Part#: I-121-ZX
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$ 2,595.00 USD
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$ 2,595.00 USD
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For the E46 M3 Convertible enthusiast looking to bridge the gap between a high-end street car and a dedicated race machine, the BC Racing ZX Series offers an unparalleled engineering approach. By moving the compression valving to the external canisters, the system maintains its integrity under high-stress, high-temperature conditions, effectively eliminating "damper fade." For the E46 M3 platform—especially the convertible which requires higher roll stiffness to compensate for chassis flex—the ZX Series' 12kg rear spring rate and advanced damping provide the stability needed to maintain a flat cornering attitude. The system features standard front pillowball camber plates to eliminate factory rubber "mush," providing direct and unmediated steering feedback to the driver. Key Features: Enhanced Thermal Management: External canisters keep fluid away from brake heat to maintain valving accuracy lap after lap. Camber Adjustable Top Mounts: High-quality aluminum alloy plates allow for aggressive track alignments to maximize the tire contact patch. Pillowball Rear Mounts: Replaces rubber bushings with solid spherical bearings (on applicable kits) for increased response and precision. Patented Concave Locking Ring: BC Racing’s unique design ensures lower mounts remain securely locked, even under extreme track vibration. Fully Rebuildable: Every component is individual and replaceable, making this a long-term investment in the car's competitive potential. Specifications: Vehicle Fitment: 2000–2006 BMW M3 Convertible (E46 Chassis). Spring Rates (Default): Front: 8 kg/mm | Rear: 12 kg/mm (Swift Springs standard). Piston Design: Linear Twin-Piston with remote canister valving. Adjustment Range: 3-Way Independent (Rebound / Low-Speed Compression / High-Speed Compression). Warranty: 1-Year limited manufacturer's warranty.
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BC Racing - Corporate Logo
T#:47439432
Part#: I-96-DS
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$ 1,445.00 USD
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$ 1,445.00 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 - Corporate Logo
T#:51320850
Part#: I-90-RM
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$ 1,515.00 USD
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$ 1,515.00 USD
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For the E46 Convertible enthusiast who demands uncompromised feedback, the BC Racing RM Series offers a professional-grade solution. By moving the oil reservoir away from the wheel hub and brake components, the RM Series manages heat more effectively, preventing "damper fade" during long track sessions. The inclusion of front pillowball camber plates eliminates the compliant factory rubber bushings, providing direct and unmediated steering feel. Because convertibles often suffer from chassis flex, the RM Series' ability to maintain a flat cornering attitude through its stiff 12kg rear spring rate and robust inverted front struts makes it a transformative upgrade for the E46 platform. Key Features: Enhanced Thermal Management: Inverted layout moves fluid away from brake heat to maintain consistent damping performance. Camber Adjustable Top Mounts: Precision-engineered aluminum plates allow for aggressive alignment specs to maximize front-end grip. Patented Concave Locking Ring: Unique design ensures that once ride height is set, the lower mounts remain locked securely. TIG-Welded Durability: High-strength steel shock bodies with a black chrome finish for maximum corrosion resistance. Fully Rebuildable: Every component is individual and replaceable, ensuring the long-term serviceability of the system. Specifications: Vehicle Fitment: 2000–2006 BMW 3-Series (E46) Convertible (Excludes M3). Spring Rates (Default): Front: 6 kg/mm | Rear: 12 kg/mm. Damping Curve: Linear. Construction: Heavy-duty steel and 6061-T6 aluminum. Warranty: 2-Year limited warranty against manufacturer's defects.
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BC Racing - Corporate Logo
T#:47439395
Part#: I-68-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 - Corporate Logo
T#:51355992
Part#: I-121-ER
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$ 1,955.00 USD
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$ 1,955.00 USD
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For the E46 M3 enthusiast looking to bridge the gap between a high-end street car and a dedicated race machine, the BC Racing ER Series offers a "motorsport-first" engineering approach. By moving the secondary damping piston to the external canister, the system maintains its integrity under high-stress conditions. This is especially beneficial for the M3 Convertible, where the high 12kg rear spring rate helps counteract the platform's inherent weight and chassis flex, providing a flat and predictable cornering attitude. The system includes front pillowball camber plates as standard, eliminating the compliant factory rubber bushings to provide direct, unmediated steering feedback and allowing for aggressive track-ready alignment settings. Key Features: Reduced Damping Fade: External canisters keep fluid cooler by increasing the distance from hot brake components. Camber Adjustable Top Mounts: Precision-engineered aluminum plates allow for surgical alignment and increased turn-in bite. Patented Concave Locking Ring: BC Racing’s unique design ensures lower mounts remain securely locked, even under extreme vibration. Linear Piston Architecture: Provides a predictable and consistent damping feel for better driver confidence at the limit. Serviceable Construction: All components are individual and fully replaceable, ensuring the long-term serviceability of the system. Specifications: Vehicle Fitment: 2000–2006 BMW M3 (E46) Convertible / Coupe. Spring Rates (Default): Front: 8 kg/mm | Rear: 12 kg/mm. Spring Type: High-strength SAE9254 cold-wound steel. Construction: Black chrome-plated steel bodies for maximum corrosion resistance and anodized 6061-T6 aluminum. Warranty: 1-Year limited manufacturer's warranty.
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BC Racing - Corporate Logo
T#:47576365
Part#: I-95-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 - Corporate Logo
T#:47439429
Part#: I-85-RM
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$ 1,515.00 USD
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$ 1,515.00 USD
Free Shipping
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 - Corporate Logo
T#:36981066
Part#: I-105-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 - Corporate Logo
T#:46753504
Part#: I-149-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 - Corporate Logo
T#:555836
Part#: I-40-BR
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$ 1,195.00 USD
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$ 1,195.00 USD
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Looking for coilovers that will provide reliability on street driven vehicles but are also capable of feeding your weekend track demon's desire for performance? BC Racing's BR Series coilover kit may be just the thing for you.

BR Series coilovers are the most popular and versatile option offered by BC racing, offering features such as 30-level dampening adjustment (simultaneous compression and rebound control), linear springs where possible, and a minimum of 2 inches ride height drop. To ensure performance, comfort, and quality, all BR Series kits are Dyno tested during the design stage to determine the best valving and spring rates, then installed and tested for a minimum of 6 months. This kit features mounts and brackets that are fully compatible with all stock mounting points and components.

The upper shock/strut mounts are all constructed of 6061-T6 Aluminum for strength and weight savings. BC Racing design 1 of 3 types of upper mounts for each vehicle: Caster/Camber Plates (+/- 3* camber), Camber Plates (+/- 3* camber), and Rubber Mount Plates (NVH reduction). The included mount option for this kit is shown in the kit specs and features below.

Lower shock mounts are powder coated for corrosion protection and constructed of either 6061-T6 aluminum that has been milled from a single piece (fork or bolt eye mount) or of STKM13C steel with all brackets welded robotically.

The included springs come in one of 3 styles: linear, S-barrel, and V-barrel. Linear springs are used in most applications unless limited by the OE design that does not allow the use of linear springs. All spring options are made from SAE9254 steel and have a zinc coating applied under the powder coating for increased spring corrosion protection and long term reliability.

All shock bodies used in the BR Series coilovers use a 53mm shock body (unless noted otherwise) for added strength, performance, and increased fluid capacity. All shocks are then powder coated black chrome for clean styling and corrosion protection.

Specs and Features:

  • 7k Front & 11k Rear Spring Rate
  • S-Barrel front & Linear rear springs
  • Valved specifically to spring style and rate
  • Camber Plate Front Mounts
  • Aluminum and Rubber Rear Mounts
  • Black Powder Coated Components
  • All OE style brackets and mounting for perfect fit
  • 30 Levels of Simultaneous Compression and Rebound Dampening
  • 2 inch minimum and 3+ Inches of total potential drop
  • Great for Track, Street, and any other conditions
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BC Racing - Corporate Logo
T#:46409681
Part#: I-154-BR
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$ 1,215.00 USD
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$ 1,215.00 USD
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Looking for coilovers that will provide reliability on street-driven vehicles but are also capable of feeding your weekend track demon's desire for performance? BC Racing's BR Series coilover kit may be just the thing for you.
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BC Racing - Corporate Logo
T#:50731709
Part#: I-123-BR
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New Item
$ 1,215.00 USD
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$ 1,215.00 USD
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Step up to a real coilover system without blowing the budget with the BC Racing BR Series. Developed through extensive chassis testing and ongoing refinement, this kit is built to deliver sharper handling, everyday comfort, and the durability enthusiasts expect when the miles—and the pace—start adding up. BC avoids the trap of flashy, overly stiff spring specs and instead selects rates that preserve compliance while significantly improving body control. Matched damper valving ties the package together, producing a ride that feels planted, predictable, and easy to live with day after day. The mono-tube design resists heat fade during aggressive use, and the linear piston profile ensures smooth, consistent feedback as cornering loads increase. Because ride height is adjusted independently from preload, you can dial in the stance you want without compromising travel or upsetting the car’s balance. With 30 clicks of simultaneous compression and rebound adjustment, the BR Series covers a wide spectrum of driving styles—from daily commuting to serious weekend work. Key Features Highly customizable configuration 10KG front / 5KG rear spring rates Mono-tube shock construction Linear piston and damping characteristics Independent ride height adjustment 30-position compression and rebound tuning Front camber plates standard on applicable kits Rear camber solutions for select vehicles Custom spring rates and Swift compatibility Optional custom or matched valving Fully rebuildable design Protected by a 2-year manufacturer warranty
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BC Racing - Corporate Logo
T#:46753512
Part#: I-153-DS
Back Ordered
$ 1,415.00 USD
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$ 1,415.00 USD
Free Shipping
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.
Show More Show Less
BC Racing - Corporate Logo
T#:51355989
Part#: I-121-RM
Back Ordered
New Item
$ 1,515.00 USD
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$ 1,515.00 USD
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For the E46 M3 Convertible owner who demands uncompromised feedback during spirited driving or track sessions, the BC Racing RM Series offers a professional-grade motorsport approach. By moving the fluid reservoir away from the wheel hub and brake components, the RM Series manages heat more effectively, preventing damper fade during prolonged high-speed sessions. The inclusion of front pillowball camber plates replaces compliant factory rubber bushings, providing direct and unmediated steering feel. Because convertibles often require higher roll stiffness to compensate for chassis flex, the RM Series' default 12kg rear spring rate provides the stability needed to keep the E46 M3 planted and responsive through tight technical sections. Key Features: Reduced Damper Fade: Inverted layout keeps oil temperature more stable by increasing distance from hot brake components. Camber Adjustable Top Mounts: Precision-engineered aluminum plates allow for aggressive alignment specs to maximize front-end grip. Patented Concave Locking Ring: Unique design ensures that once ride height is set, the lower mounts remain locked securely against vibration. Linear Piston Architecture: Provides a predictable and consistent damping feel for better driver confidence at the limit. Fully Rebuildable: Every component is individual and replaceable, ensuring the long-term serviceability of the system. Specifications: Vehicle Fitment: 2000–2006 BMW M3 (E46) Convertible / Coupe. Spring Rates (Default): Front: 8 kg/mm | Rear: 12 kg/mm. Optional Upgrades: Compatible with custom spring rates and Swift Springs (+2kg/-2kg range on standard valving). Finish: Black chrome-plated steel bodies for maximum corrosion resistance. Warranty: 2-Year limited warranty against manufacturer's defects.
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BC Racing - Corporate Logo
T#:47576361
Part#: I-153-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 - Corporate Logo
T#:51356035
Part#: I-111-DS
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New Item
$ 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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BC Racing - Corporate Logo
T#:46753509
Part#: I-154-DS
Back Ordered
$ 1,415.00 USD
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$ 1,415.00 USD
Free Shipping
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.
Show More Show Less
BC Racing - Corporate Logo
T#:47439433
Part#: I-104-DS
Back Ordered
$ 1,415.00 USD
Free Shipping
$ 1,415.00 USD
Free Shipping
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.
Show More Show Less

BC Racing - Corporate Logo
T#:47439435
Part#: I-130-DS
Back Ordered
$ 1,415.00 USD
Free Shipping
$ 1,415.00 USD
Free Shipping
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 BR Series Coilover Suspension Kit - 2014-2022 BMW i3 ...
Custom built to order - 3-4 week estimated lead time
BC Racing - Corporate Logo
T#:4042154
Part#: I-91-BR
Back Ordered
$ 1,195.00 USD
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$ 1,195.00 USD
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The BC Racing BR Series offers the most affordable entry into coilover suspension without sacrificing performance, comfort, build quality, vehicle height, or handling. This is done by extensively testing each vehicle then refining the coilover characteristics as many times as needed to ensure the most well-balanced and affordable aftermarket suspension conceivable. BC Racing takes great pride in choosing spring rates for our off-the-shelf kits that strike the perfect balance between comfort and performance so you're never stuck with an oversprung suspension like many other brands sell. BC Racing offers one of the widest ranges of damping adjustment with 30-clicks of compression/rebound adjusted simultaneously on the BR Series. With meticulously chosen spring rates, damper valving, and one of the widest adjustment ranges in the industry, you can't go wrong with the BC Racing BR Series Coilover System.
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BC Racing - Corporate Logo
T#:47439373
Part#: I-13-RM
Back Ordered
$ 1,515.00 USD
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$ 1,515.00 USD
Free Shipping
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.
Show More Show Less

BC Racing - Corporate Logo
T#:47576364
Part#: I-155-ER
Back Ordered
$ 1,955.00 USD
Free Shipping
$ 1,955.00 USD
Free Shipping
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 - Corporate Logo
T#:46409676
Part#: I-155-BR
Back Ordered
$ 1,215.00 USD
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$ 1,215.00 USD
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Looking for coilovers that will provide reliability on street-driven vehicles but are also capable of feeding your weekend track demon's desire for performance? BC Racing's BR Series coilover kit may be just the thing for you.
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BC Racing - Corporate Logo
T#:51355987
Part#: I-121-DS
Back Ordered
New Item
$ 1,415.00 USD
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$ 1,415.00 USD
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The BC Racing DS Series for the E46 M3 Convertible is built using motorsport-grade materials designed to withstand the rigors of spirited driving and technical road courses. Because the E46 M3 platform benefits greatly from increased front camber, this kit comes standard with front pillowball camber plates. These plates replace the compliant factory rubber mounts, providing unmediated feedback to the driver and allowing for aggressive alignment settings to maximize tire contact patches. Every DS Series kit is hand-assembled and fully rebuildable, with the option to upgrade to Swift Springs for even more consistent spring rates and reduced weight. Whether you're carving canyons or attending a weekend track day, the DS Series provides the stability and feedback needed to push the E46 M3 chassis to its limits. Key Features: Front Camber Plates: Precision-engineered aluminum alloy plates for surgical alignment and increased turn-in bite. Patented Locking Ring: Features a concave lower locking ring that prevents the system from vibrating loose even under track conditions. Bearing-Mounted Spring Platforms: Minimizes "spring binding" or popping during low-speed steering maneuvers. Fully Rebuildable: Every component, from the seals to the valving, is individual and replaceable for long-term serviceability. Customization Ready: Fully compatible with custom spring rates and Swift Spring upgrades for tailored track setups. Specifications: Vehicle Fitment: 2000–2006 BMW M3 Convertible (E46 Chassis). Spring Rates (Default): Front: 7 kg/mm | Rear: 12 kg/mm. Spring Type: High-strength SAE9254 cold-wound steel. Adjustability: Independent ride height, independent spring preload, and 30-way damping. Warranty: 2-Year limited manufacturer's warranty.
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BC Racing - Corporate Logo
T#:46753524
Part#: I-95-DS
Back Ordered
$ 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 - Corporate Logo
T#:47439396
Part#: I-68-HM
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$ 2,565.00 USD
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$ 2,565.00 USD
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The BC Racing HM Series Coilover System gets its great qualities from a combination of two previous BC Racing Coilover Systems - the RM Series and ER Series. The HM Series uses an inverted mono-tube damper, just like the RM Series, but adds the independent compression and rebound adjustment of the ER Series. Each HM Series Coilover System uses inverted mono-tube dampers front and rear on McPherson strut vehicles with steel braided lines leading from the top of the damper to the external reservoirs. The external reservoirs allow for a higher oil capacity with the added benefit of increased thermal dissipation, they also house the secondary damping piston. For Subarus and other McPherson suspension vehicles that are heavily tracked, the BC Racing HM Series Suspension System is definitely worth checking out!
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