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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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BC Racing - Corporate Logo
T#:51320834
Part#: I-114-RM
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$ 1,515.00 USD
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$ 1,515.00 USD
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For the enthusiast who uses their F31 Touring as both a daily driver and a weekend track tool, the BC Racing RM Series provides unparalleled driver feedback. The inclusion of front pillowball camber plates as standard allows for aggressive alignment settings that sharpen turn-in and eliminate the "mushy" feel associated with OEM rubber mounts. By moving the oil reservoir away from the hub, the fluid stays cooler during spirited sessions, preventing the "damper fade" that often plagues standard suspension setups after consistent hard use. With the RM Series, the BMW F31 gains a level of poise and responsiveness typically reserved for dedicated M-cars. Key Features: Camber Adjustable Top Mounts: Pillowball front top mounts allow for precise camber adjustment and direct steering feedback. Reduced Damper Fade: Inverted layout keeps oil temperature more stable by increasing distance from hot brake components. Bearing-Mounted Spring Platforms: Minimizes friction between the spring and the perch to eliminate "spring binding" and popping. Patented Concave Locking Ring: Unique design ensures that once height is set, the lower mounts remain locked securely against vibration. Serviceable Design: Fully rebuildable with all replacement parts available directly from BC Racing. Specifications: Vehicle Fitment: 2012–2019 BMW 3-Series (F31) Touring / Wagon (3-Bolt Front Top Mounts). Spring Rates (Default): Front: 6 kg/mm | Rear: 10 kg/mm. Optional Rates: Custom springs (BC or Swift) available from 4kg to 20kg+ to suit specific builds. Construction: TIG-welded heavy-duty steel and anodized aluminum components. Warranty: 2-Year limited manufacturer's warranty.
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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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BC Racing - Corporate Logo
T#:46409684
Part#: I-149-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#:46719197
Part#: I-141-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#: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 - Corporate Logo
T#:46924980
Part#: T-11-BR
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$ 1,215.00 USD
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$ 1,215.00 USD
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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#:46409683
Part#: I-151-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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AST Suspension - Corporate Logo
T#:24643799
Part#: RIV-B1603SD
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$ 6,010.00 USD
$ 6,010.00 USD

BC Racing - Corporate Logo
T#:47439377
Part#: I-29-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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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#: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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BR Series Coilover Suspension Kit
For GT RWD model 5-series
BC Racing - Corporate Logo
T#:50731692
Part#: I-110-BR
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$ 1,215.00 USD
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$ 1,215.00 USD
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If you’re looking for a suspension package that can handle daily driving, spirited back roads, and regular track time without compromise, the BC Racing BR Series has earned its reputation for a reason. It delivers broad adjustability, dependable construction, and chassis-specific tuning at a price point that continues to make sense for enthusiasts. Designed to integrate with factory mounting locations, the BR Series installs cleanly using OE-style brackets and hardware. Each damper is hand assembled and dyno tested, then paired based on matched compression and rebound values to ensure consistent performance from side to side. Spring rates and internal valving are selected following extensive R&D and long-term evaluation to balance ride quality with capability. Damping changes are made through a single adjuster offering 30 positions of simultaneous compression and rebound, giving you a wide operating window from comfortable street manners to firm, controlled response during aggressive driving. This configuration includes a 10K front spring rate with an S-barrel front spring where packaging requires it, paired with a linear rear arrangement for predictable, repeatable behavior. Construction highlights 6061-T6 aluminum upper mounts on applicable positions Rubber isolation mounts where reduced NVH is preferred Aluminum or robotically welded steel lower brackets Powder-coated components for corrosion resistance SAE9254 steel springs with protective zinc and powder coating Tuning & fitment 30-way damping adjustment Valving matched to spring design and rate Direct compatibility with OE mounting points and components
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KW Suspension - Corporate Logo
T#:338276
Part#: TMS338276
Back Ordered
Starting at $ 2,454.00 USD
Starting at $ 2,454.00 USD
Adjustable Rebound Damping, Sport Comfort Springs

Is your sport suspension kit is too hard for you? Do you want a sporty yet dynamic suspension while retaining ride comfort? With street comfort suspension KW offers you the solution, you can create that sportive look while keeping as much comfort as possible. Long trips on the highway will be a pleasure; fun can be had on county roads.

KW street comfort � The most individual sport suspension with maximum comfort

With the individual height adjustable KW street comfort coilover kit a lowering of 10-40mm can be realized, depending on the vehicle. This way the customer has the flexibility to improve the look, with consideration of bigger wheels and tires. At the same time the lowering has a positive effect on the driving dynamics and road contact. With discreet but effective lowering more spring travel will be left to combine a comfortable spring with harmonic damper, this way the best driving comfort is guaranteed. With this product KW offers the perfect compromise of driving dynamic and driving comfort.

  • Maximum driving comfort for a perfect performance and more driving pleasure
  • Guarantees more comfort, flexibility and sportive as regular OE sport suspensions
  • Comfortable adjustment
  • Better handling due to less body roll
  • TUV approved lowering range
  • Individually height-adjustable - Front - 20-40mm, Rear - 20-40mm
  • Trapezoid thread for a easy height adjustability
  • High quality damper components for a long durability
  • Adjustable rebound damping
  • Complete detailed documentation for easy use.
    When using original tires, wheel spacers may be required.



    This item fits the following BMWs:
    2012+ F30 BMW 320i xDrive 328d xDrive 328i xDrive - Sedan
    2013+ F32 BMW 428i xDrive - Coupe
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    BC Racing - Corporate Logo
    T#:47439366
    Part#: I-74-DS
    Back Ordered
    $ 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#: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#:555816
    Part#: I-73-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:

    • 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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    BC Racing - Corporate Logo
    T#:50066868
    Part#: I-153-ZX
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    $ 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#:47439426
    Part#: I-86-DS
    Back Ordered
    $ 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#:51356016
    Part#: I-121-ZX
    Back Ordered
    $ 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#:51320841
    Part#: I-114-ZX
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    $ 2,595.00 USD
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    $ 2,595.00 USD
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    For the F31 Touring owner who demands a professional-grade suspension setup, the BC Racing ZX Series delivers unparalleled driver feedback and thermal stability. By moving the compression valving to the external canisters, the system can better manage the extreme temperatures generated during track use, ensuring that damping rates remain consistent from the first lap to the last. The 3-way adjustment allows for specialized tuning; for instance, softening high-speed compression to handle curbing while keeping low-speed compression firm for sharp turn-in and minimal body roll. This level of control, paired with a significant reduction in unsprung weight via strategic component design, transforms the F31 into a remarkably poised and highly responsive racing machine. Key Features: Triple-Valved Control: 30 clicks of Rebound, 15 clicks of High-Speed Compression, and 15 clicks of Low-Speed Compression. Thermal Management: External reservoirs keep fluid cooler, extending the life of the oil and maintaining valving consistency. Reduced Unsprung Weight: Lightweight aluminum components where possible to improve wheel tracking over high-speed imperfections. Custom Valving Available: Valving can be paired specifically for custom spring rates or Swift Spring upgrades. Fully Rebuildable: Every component is individual and replaceable, making this a long-term investment for a competitive chassis. Specifications: Vehicle Fitment: 2012–2019 BMW 3-Series (F31) Touring / Wagon (3-Bolt Top Mount models). Spring Rates (Default): Front: 6 kg/mm | Rear: 10 kg/mm. Spring Options: Customizable from 6kg to 30kg+ to suit specific aero or tire requirements. Damping Architecture: Mono-tube with external canisters. Adjustment Type: Independent ride height and 3-way damping.
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    BC Racing - Corporate Logo
    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 - Corporate Logo
    T#:46753524
    Part#: I-95-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#:47439400
    Part#: I-41-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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    AST Suspension - Corporate Logo
    T#:29898448
    Part#: RAC-B2112SD
    Back Ordered
    10% off MSRP $ 9,480.00

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

    $ 8,532.00 USD
    10% off MSRP
    $ 9,480.00

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

    $ 8,532.00 USD
    Are you the most dedicated enthusiast on the race track? Elevate your racing game to a championship level with the AST 3-WAY MOTORSPORT SUSPENSION. This advanced system empowers you to challenge your vehicle by independently adjusting rebound and low- and high-speed compression with a remote reservoir, providing distinct feedback and a unique driving sensation with each setting. ### Key Features: **Inverted Strut Design:** Built to withstand heavy side loads and braking forces, ensuring peak performance under intense conditions. **MONOTUBE Coilover Design:** Both front and rear dampers utilize this design, offering consistent performance and superior heat dissipation. **Adjustable Spring Rates:** Allows you to fine-tune your vehicle's suspension to meet your specific needs. **Rebound Adjustment:** With 12 distinct positions, you can control the damper's return to extension, affecting how the vehicle responds after compression and providing a unique driving experience with each setting. **Compression Adjustment:** Customize the suspension's response to compression with separate low- and high-speed controls: - **Low-Speed Compression:** Manages the suspension’s reaction to gentle, gradual forces. - **High-Speed Compression:** Handles rapid, forceful impacts. ### Benefits: - **Improved Handling:** Adjusting rebound and compression settings helps reduce body roll during cornering, enhancing responsiveness and maintaining tire contact for better traction. - **Customized Ride Comfort:** Fine-tune compression adjustments to balance performance and comfort, tailoring the ride quality to your preferences. - **Enhanced Front-End Grip:** Camber-adjustable front top mounts provide more wheel adjustment, transforming front-end grip and offering better control over your vehicle’s geometry. ### Additional Features: - **Solid Rear Top Mounts:** Ensure durability and stability under demanding conditions. With the AST 3-WAY MOTORSPORT SUSPENSION, you can fine-tune and customize three critical aspects of your vehicle's suspension, transforming your driving experience and elevating your performance. Designed for the most dedicated racing enthusiasts, this suspension system excels on both the road and the track.
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    BC Racing - Corporate Logo
    T#:47439373
    Part#: I-13-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#:46753507
    Part#: I-151-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#:47439429
    Part#: I-85-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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    KW Suspension - Corporate Logo
    T#:339944
    Part#: 1022000ABX
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    Starting at $ 2,384.00 USD
    Starting at $ 2,384.00 USD
    Factory Pre-set Damping

    The Variant 1 is KW's basic simple and effective coil over kit that is still packed with lots of features -
  • Pre-set damping optimized for a blend of ride comfort and handling with less bodyroll than the standard suspension,
  • Stainless steel strut/shock bodies and composite spring perches for superior corrossion resistance,
  • Individually height-adjustable - Front = 25-50mm lowering; Rear = 30-55mm lowering,
  • TUV approved lowering range and operation,
  • Expert engineering and design for ease-of-use and long durability,
    This is the ideal coil over kit for a F31 328i xDrive Wagon owner who does not plan on tracking or autocrossing the car and just wants a lower, more aggressive stance and better handling. KW has set the shock damping rates to be an excellent balance for a smooth yet taut ride, and to resist bodyroll motions for better handling. The Variant 1 differs from the Street Comfort set in that it has stiffer springs and revised shock settings. If you want a sportier ride and better handling than stock the Variant 1 is an excellent choice.

    Coil over suspensions are better engineered suspension options compared to a standard shock + spring package. Since the springs and shocks in a coil over are designed by a team of engineers to work together, there is much better suspension travel and more precisely tuned specifications for spring and shock rates. Using separate shock and spring specs may result in premature coil bind or shock bottoming. And most coil over kits offer more features than the traditional packages. Coil overs are also more useful when larger wheels/tires are used because you can precisely set the ride heights to clear the new tires.

    Fitment Note: Wheel spacers may be required depending on wheel/tire sizing and ride height setting.
    Cars with the factory EDC electronic adjustable shocks must have the system disabled with the optional KW EDC Cancellation Kit (or similar). This is a direct fit for cars without EDC.

    Lifetime warranty!




    These KW Variant 1 coil overs fit the following BMWs:
    2012+ F31 BMW 328i xDrive - Wagon
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    BC Racing - Corporate Logo
    T#:51355985
    Part#: I-131-DS
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    $ 1,415.00 USD
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    $ 1,415.00 USD
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    For the BMW G30 owner looking to eliminate the "wallow" of factory suspension, the BC Racing DS Series offers a professional-grade motorsport approach. Built from TIG-welded 304 stainless steel and heavy-duty aluminum, this system is designed to withstand the rigors of high-intensity driving. The DS Series includes high-strength SAE9254 cold-wound steel springs, which have been tested through over 500,000 cycles with less than 5% deformation. By moving the secondary damping piston to the digressive valving architecture, the system provides a sharper turn-in and more direct steering feedback. Every DS Series kit is hand-assembled and fully rebuildable, ensuring it remains a long-term performance investment for your BMW. Key Features: Enhanced Chassis Poise: Digressive damping curve specifically combats the weight of the G30 chassis during spirited driving. Pillowball Top Mounts: High-quality aluminum alloy mounts provide direct 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. Bearing-Mounted Spring Platforms: Minimizes "spring binding" or popping during low-speed steering maneuvers. Customization Ready: Fully compatible with custom spring rates and Swift Spring upgrades for tailored track setups. Specifications: Vehicle Fitment: 2017–2023 BMW 5-Series (G30) Sedan AWD / xDrive. Spring Rates (Default): Front: 9 kg/mm | Rear: 4.2 kg/mm. Adjustability: Independent ride height, independent spring preload, and 30-way damping. Maintenance: Fully rebuildable with all replacement parts readily available. Warranty: 1-Year limited manufacturer's warranty.
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    BC Racing - Corporate Logo
    T#:47439375
    Part#: I-29-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#:47439398
    Part#: I-82-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#:47439380
    Part#: I-11-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#:47439436
    Part#: I-49-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#:51320846
    Part#: I-90-DS
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    $ 1,415.00 USD
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    $ 1,415.00 USD
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    The BC Racing DS Series for the E46 Convertible is built using motorsport-grade materials designed to withstand the rigors of spirited driving and technical road courses. Because the E46 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 fully rebuildable and customizable, 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 chassis to its limits. Key Features: Front Camber Plates: Precision-engineered aluminum plates for surgical alignment and increased turn-in bite. Satin Chrome Finished Shock Body: A highly durable coating that resists the elements while providing a high-end look. Linear Spring Piston: While the valving is digressive, the springs remain linear to provide a predictable and consistent feel. Fully Rebuildable: Every part, from the seals to the valving, is serviceable and replaceable. Custom Spring Rate Compatibility: Can be ordered with custom valving paired specifically to your requested spring rates. Specifications: Vehicle Fitment: 2000–2006 BMW 3-Series (E46) Convertible (All models except M3). Spring Rates (Default): Front: 6 kg/mm | Rear: 8 kg/mm. Optional Rates: Custom rates available (e.g., 8kg/10kg) for more track-oriented setups. Piston Diameter: 46mm. Adjustability: Ride height, spring preload, and 30-way damping.
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    BC Racing - Corporate Logo
    T#:47439405
    Part#: I-17-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#:47439431
    Part#: I-61-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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    KW Suspension - Corporate Logo
    T#:1017097
    Part#: 3A7200CR
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    $ 8,594.00 USD
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    $ 8,594.00 USD
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    The KW Variant 4 coilover injects top-level motorsport design into a coilover that is fully useable on the street in a day-to-day situation. Combining years of race-winning design and engineering with real-world testing, KW has introduced a line of coilovers that checks all the boxes and then some. If you are looking for maximum adjustability, reliability, and comfort then this is the kit for you. Lowering of 15-40mm Front and 15-40mm Rear. Two-Step Rebound Valve with Adjustable KW TVR-A Rebound Stage Damping Technology The rebound stage damping is precisely tuned to the respective vehicle on our in-house drive dynamics test facility, with the setting fixed in the mid-range. Individual customization can be achieved in 16 precise click positions, allowing you to choose between more comfort or more body control. The two-step patented TVR-A technology allows the damper oil to flow through an adjustable, conical low-speed valve during slow piston speeds, while during higher piston speeds the main rebound stage valve opens to handle the flow of large volumes of oil. This provides a major improvement in ride comfort without influencing the high-speed in the safety-relevant zone. Two-Step Compression Stage Valve with Low and High-Speed KW TVCLH-A Adjustment Technology This is the high-end motorsports technology for the most demanding street and track performance customers. Two separate valves and a two-way adjustable compression stage valve allow separate compression damping changes in the low and high-speed range. The adjustments are made via two adjustment dials with click increments that feature 16 settings (with 15 clicks) in the high-speed valve housing and 7 settings (with 6 clicks) in the low-speed housing. During tuning at the KW drive dynamics test facility, the groundbreaking V4 coilover suspension is tuned to a mid-level basic setting for the best road performance with an additional recommended setting for occasional track day use. The 3A Clubsport coilover suspension is tuned to a mid-level factory setting especially for track day use, with an additional recommended setting for the drive to the race track. Starting from the factory setting, the damping can be set firmer or softer for low and high-speed. External Reservoir The use of KW reservoirs provides additional volume for additional oil and additional cooling capacity for extremely high-performance setups. The reservoir is filled with low gas pressure and can be fitted anywhere and accommodates the adjustable compression stage valve to provide the damper with more working space. Additional Features: Uniball Top Mount Trapezoidal Threads Stainless Steel Innox Construction Composite Spring Seats
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    BC Racing - Corporate Logo
    T#:47439369
    Part#: I-113-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#:51320855
    Part#: I-90-ER
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    $ 1,955.00 USD
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    $ 1,955.00 USD
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    For the E46 Convertible enthusiast looking to bridge the gap between a high-end street car and a dedicated race machine, the BC Racing ER Series offers uncompromised performance. By moving the secondary damping piston to the external canister, the system maintains its integrity under high-stress, high-temperature conditions. This is especially beneficial for the E46 Convertible, where the added 12kg rear spring rate helps counteract the platform's inherent weight distribution and chassis flex. The system features bearing-mounted spring platforms to eliminate the friction and "spring binding" often felt during tight steering maneuvers. Every ER Series kit is hand-assembled with precision and is fully rebuildable, ensuring it remains a long-term investment in the performance of your BMW. Key Features: Reduced Damping Fade: Strategic fluid placement keeps oil cooler, preserving valving accuracy during extended spirited driving. Camber Adjustable Top Mounts: High-quality aluminum plates eliminate the "mushy" feel of factory rubber bushings for direct driver feedback. Patented Concave Locking Ring: BC Racing’s unique design ensures lower mounts remain securely locked, even under extreme vibration. Customization Ready: Fully compatible with Swift Spring upgrades and custom valving tailored to specific tire or aero setups. Serviceable Construction: All components are individual and fully replaceable directly through BC Racing North America. Specifications: Vehicle Fitment: 2000–2006 BMW 3-Series (E46) Convertible (Excludes M3). Spring Rates (Default): Front: 6 kg/mm | Rear: 12 kg/mm. Spring Type: High-strength SAE9254 cold-wound steel. Construction: 304 Stainless Steel and 6061-T6 Anodized Aluminum. Warranty: 2-Year limited manufacturer's warranty.
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    KW Suspension - Corporate Logo
    T#:338396
    Part#: TMS338396
    Back Ordered
    Starting at $ 4,584.00 USD
    Starting at $ 4,584.00 USD
    Adjustable Rebound & Compression Damping, Front Camber Plates & Stiffer Springs

    Must have 3 Bolt Upper Strut Mount

    KW Clubsport coilovers was developed for F22 M235i Coupe owners who demand a better handling car when participating in track day events, but also require a setup that could be used every day. The Clubsport was specifically designed for the Nordschleife using track day tires. By using the adjustable camber mounts, the suspension geometry can be adjusted to the requirements of tires and the intended use. The mentioned adjustment options combined with the independently adjustable rebound and compression damping technology allow a suspension setup according to the vehicle load, tire characteristics and different track conditions. KW Clubsport meets every demand regarding a coilover for the usage on the road and the race track.

    KW Clubsport suspension kits are independently adjustable in compression and rebound and include high performance racing springs. Racing front camber plates are included for further performance. KW Clubsport guarantees excellent handling, best performance, highest agility and fantastic lap times.
  • Height adjustable coilovers - Front - 40-65mm, Rear - 30-60mm
  • Performance setup for the racetrack
  • Dampers in compression & rebound forces independently adjustable
  • Use of high performance linear race springs: Front 457 lbs/inch, Rear 685 lbs/inch.
  • Stainless steel technology "inox-line"
  • Includes front camber plate mounts
    Fitment Note: Wheel spacers may be required depending on wheel/tire sizing and ride height setting.
    EDC must be disabled using the included KW EDC Cancellation Kit or a similar unit. This is a direct install for cars without the factory EDC.

    Choose:
    2-way (Rebound/Compression) adjustable shocks
    or
    3-way(Rebound/Low-Speed Compression/High-Speed Compression).


    KW Clubsport Development and Testing




    This item fits the following BMWs:
    2014-1/2015 F22 BMW 228i M235i
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    BC Racing - Corporate Logo
    T#:51356002
    Part#: I-121-ZR
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    $ 2,865.00 USD
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    $ 2,865.00 USD
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    For the professional-level racer or the extreme enthusiast, the BC Racing ZR Series addresses the unique geometric and thermal requirements of the E46 M3 platform. By utilizing inverted front struts with a massive 42mm piston shaft, the ZR Series provides extreme structural rigidity, preventing geometry deflection under heavy braking and cornering loads. The 3-way adjustment allows the driver to "dial in" the car for specific obstacles; for instance, softening high-speed compression to soak up aggressive curbing while keeping low-speed compression firm for immediate turn-in response. Combined with standard pillowball top mounts, this system eliminates the "mushy" feel of factory rubber, providing direct, unmediated feedback to the driver. Key Features: Reduced Damper Fade: Remote external canisters move fluid away from hot brake components to ensure consistent lap times. Camber Adjustable Top Mounts: High-quality aluminum plates allow for aggressive track alignments to maximize the tire contact patch. Pillowball Rear Mounts: Replaces rubber bushings with solid spherical bearings 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 (E46) Convertible / Coupe. Spring Rates (Default): Front: 8 kg/mm | Rear: 12 kg/mm. Construction: TIG-welded steel and CNC-machined aluminum. Adjustment Range: 3-Way Independent (Rebound / Low-Speed Compression / High-Speed Compression). Warranty: 1-Year manufacturer’s warranty against defects.
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    BC Racing - Corporate Logo
    T#:50066866
    Part#: I-155-ZX
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    $ 2,595.00 USD
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    $ 2,595.00 USD
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    Enhance your suspension setup with BC Racing coilovers, configured with 5kg/mm front and 6kg/mm rear spring rates to deliver a composed balance between ride quality and performance-focused handling. Utilizing BC Racing’s monotube damper design, this coilover system improves damping response, minimizes body roll, and provides consistent feedback compared to factory suspension components. The spring rate combination favors a compliant front with a slightly softer rear, resulting in predictable chassis behavior and stable, confidence-inspiring handling for street-oriented performance driving. Ride height adjustment is independent of shock travel, allowing precise stance tuning without compromising suspension geometry or ride comfort. Springs and dampers are properly matched to maintain control and stability whether commuting daily or driving aggressively on back roads. Key Features: Monotube dampers for consistent damping performance 5kg/mm front and 6kg/mm rear spring rates optimized for street handling Independent ride height adjustment Tuned for daily driving with spirited performance capability Durable construction for long-term reliability
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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#:47439428
    Part#: I-85-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 - Corporate Logo
    T#:47439376
    Part#: I-29-RM
    Back Ordered
    $ 1,515.00 USD
    Free Shipping
    $ 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#:51355989
    Part#: I-121-RM
    Back Ordered
    $ 1,515.00 USD
    Free Shipping
    $ 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#:46753521
    Part#: I-159-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#:555842
    Part#: I-27-BR
    Back Ordered
    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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