BMW Suspension Parts for BMW 3 Series E46 (1999-2005)

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Your BMW's handling is determined by the capabilities and age of your suspension components. Our selected aftermarket performance suspension like coilovers, lowering springs, cup kits, and dampers can improve the handling of your BMW dramatically. With those upgrades comes the needs for proper adjustment; our recommended supporting modifications comes stiffer sway bars, bushings, and adjustable camber/caster plates, to name a few found on this page. Completely build your suspension for the most competitive BMW driving experience, achieve your perfect look, or simply replace your worn suspension with our recommended parts.

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Turner Motorsport - Corporate Logo
T#:339013
Part#: TMS3850
Back Ordered
Sale - Save 3% $ 3,391.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 3,290.23 USD
Sale - Save 3%
$ 3,391.99

This product was last offered at the strikethrough price on
06-13-2026

Starting at $ 3,290.23 USD
Special bundle offer! This kit adds Turner swaybars, Turner front adjustable sway bar / swaybar links, adjustable rear swaybar links, and JTD aluminum rear shock mounts to our TrackSport Coil-over suspension kit, for just $500 more. That's an additional $248.41 off the bundled items, combined for a $348.41 in savings (WOW!!). Kit fits all 2001-2006 E46 M3.

Our own custom Coil-Over suspension kit for the E46 M3 has been designed specifically for the committed motorsport enthusiast who is willing to relinquish ride comfort on the street in return for razor-sharp handling performance. This is our firmest streetable coil-over kit, making it the choice for weekend track and club sport events. Designed and engineered by Turner Motorsport and H&R, these kits are Nurburgring tested and Autobahn / TUV approved. Such a combination of handling performance and quality simply cannot be matched at this special low introductory price.

This kit consists of the following
� Turner TrackSport Coil-over suspension - (front and rear H&R/Bilstein fixed-valving dampeners matched to Turner customized H&R coil springs, and feature fully-threaded front shock bodies (not an imitation sleeve-over) and adjustable rear spring perches that allow you to precisely dial in front and rear ride height. (kit tends to lower the car 1-2" front and .75-1.6" rear). Each shock is engineered to work in harmony with its matched progressive-rate spring (about 400 lbs front and 650 lbs rear), together creating a finely tuned suspension system.
� Turner E46 M3 sway bar / swaybar Set - 30mm 3-way adjustable front bar and 25mm 2-way adjustable rear bar, including sway bar bushings.
� Turner Adjustable Front Swaybar Links (pair) - Quiet operation and long life as the stock links, plus the strength and adjustability of rod-end style links. These allow you to neutralize preload on swaybars to balance the car.
� TMS Adjustable Rear Swaybar Links (pair)
� JTD Aluminum Rear Shock Tower Mounts (pair)

Kit fits all E46 M3, as produced in 2001, 2002, 2003, 2004, 2005 & 2006. Pictured with our (optional) Turner Camber plates, these are not included in the basic coil-over kit, but can be added to dial front camber/caster settings, available in street or race versions.
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ECS - Corporate Logo
T#:58234559
Part#: 057821LA01
In Stock
New Item
$ 1,799.99 USD
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$ 1,799.99 USD
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Take total control of your E46's handling with the ECS Performance 2-Way Adjustable Coilover System. Built specifically for track use, this system bridges the gap between standard off-the-shelf coilovers and full-fledged motorsport suspension. These coilovers feature independent compression and rebound controls supported by external reservoirs; unlocking the precision tuning needed to shave seconds off your lap times.

Traditional 1-way coilovers force a single adjustment knob to balance both bump and rebound. These 2-way dampers eliminate that trade-off with fully independent compression and rebound controls. Use the 32 levels of compression adjustment to control front weight transfer under heavy braking, maximizing entry grip and allowing you to trail-brake deep into corners without understeer. 22 rebound levels fine-tune chassis recovery on brake release, keeping the front tires loaded through the apex for faster power-on exit speeds.

To maintain consistent performance during extended periods of performance driving, these dampers feature dedicated external fluid reservoirs that significantly increase total gas volume. During rigorous track use, rapid piston movement generates intense friction and heat, causing standard damper oil to thin out, aerate, and lose its damping force. By increasing overall fluid capacity, the external reservoirs effectively dissipate heat to keep peak oil temperatures down.

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BC Racing - Corporate Logo
T#:4333512
Part#: I-02-ZR
Ships in 5 Business Days
$ 2,835.00 USD
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$ 2,835.00 USD
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BC Racing's new ZR Series Coilovers bring a 3-way adjustable track ready coilover system to racers from novice to pro for a price not seen before in the performance suspension market. Each ZR Series Coilover system offers independent low speed and high speed compression adjustment and separate rebound adjustment. They also offer full height adjustability independent of piston travel and spring preload. On cars with McPherson struts the ZR Series comes standard with an inverted monotube damper with the steel braided Teflon coated line exiting the top of the damper to the external reservoirs that can be remotely mounted in the engine bay or boot. The ZR Series kits offer 30 clicks of rebound adjustment, 15 clicks of low speed compression adjustment, and 12 clicks of high speed compression. 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 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: * 3-way adjustable damping controls * External reservoir * Engineered for 100% track use * Inverted damper design. (depending on models) * Dual Piston design. (1 in 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
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BC Racing - Corporate Logo
T#:4319898
Part#: I-02-RM
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$ 1,495.00 USD
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$ 1,495.00 USD
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BC Racing has made a name for themselves in the automotive enthusiast communities by developing adjustable, street-and-track capable coilover kits for over a decade that are not only extremely effective, but also don't brake the bank! 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 RM series feature high quality damping adjustable monotube inverted dampers at the front or front and rear, depending on vehicle. The RM coilovers offer the majority of the features of the BR series but with the additional benefit of the inverted damper unit. Inverting the damper unit brings with it a number of advantages. The large 42mm damper rod and inverted design gives the inverted damper units much greater strength and resistance to side loadings. By reducing flex the RM inverted units lead to more consistent steering geometry resulting in more predictable and responsive handling. 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 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: Highly Customizable Inverted Mono-Tube Damper Linear Piston And Damping Curve Height Adjustment Independent Of Spring Compression 30-Clicks Of Simultaneous Compression/Rebound Adjustment Front Camber Plates Standard On Applicable Kits Rear Camber Plates Available For Applicable Kits Custom Spring Rates And Swift Spring Compatible Custom Valving Or Valving Paired For Custom Spring Rates 1-Year Warranty Against Manufacturers Defect Fully Rebuildable NOTE: LEAD TIMES WILL BE 4-8 WEEKS.
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Suspension Techniques - Corporate Logo
T#:638035
Part#: 1820220821
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$ 2,799.00 USD
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$ 2,799.00 USD
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After the success of ST's XTA line of coilovers, it's no wonder ST decided to take things a step further with their all-new XTA Plus 3 coilovers. These new coilovers take many of the great features of the XTA line and integrated them in a package with significantly more control, allowing you to individually adjust 3 dampening settings, including High-Speed Compression, Low-Speed Compression, and Rebound dampening. This makes dialing in your preferred tack settings a breeze and allows for fine-tuned adjustment to suit any track conditions and racing styles! As an added bonus, this means even major vehicle modifications (such as heavy roll cages, bushing changes, altered wheel loads) can be taken into account when adjusting your coilovers to help you further maintain similar optimal handling characteristics. Features: Latest damping technology for maximum longevity Reduced system friction for effective damping adjustment Individual lowering within the tested adjustment range Front and rear axle (when possible) with thread adjustment Galvanized coilover struts with additional coating for an optimized corrosion protection Complete solution with adjustable spring plate, race spring system, and bumpers with dust protection Aluminum adjustable uniball top mounts (when possible) Scaled camber adjustment (when possible) 3-way adjustable dampers: 18 clicks low-speed rebound damping 24 clicks low-speed compression damping 24 clicks high-speed compression damping Lowering Specifications: Front: 1.2-2.8" Rear: 1.2-2.0"
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Suspension Techniques - Corporate Logo
T#:599124
Part#: 18220023
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$ 1,399.00 USD
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$ 1,399.00 USD
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Designed in conjunction with KW Germany, ST XA coilovers deliver a sporty handling by reducing the car’s bodyroll during compression as well as improving agility when driving fast. The high-quality production of each ST XA coilover includes a low-friction and pressure resistant housing alongside a chrome-plated piston rod for maximum longevity. A mono block guide and ST seal package ensures the twin-tube dampers remain free of dirt particles in all weather conditions.
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KW Suspension - Corporate Logo
T#:348849
Part#: 35220825
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$ 4,744.00 USD
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$ 4,744.00 USD
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Tailored for track performance, the KW Clubsport Coilover Kit offers exceptional adjustability, catering to enthusiasts who desire precise ride quality adjustments according to varying loads, tire setups, and other driving factors.

Product Benefits:

  • Ideal for track performance
  • Abundant adjustability options
  • Precision in ride quality adjustments
  • Customizable settings for load, tires, and driving conditions
  • Enhanced handling and responsiveness
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BC Racing - Corporate Logo
T#:4333550
Part#: I-14-ER-C
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$ 1,935.00 USD
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$ 1,935.00 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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KW Suspension - Corporate Logo
T#:11636
Part#: 35220024
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$ 3,094.00 USD
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$ 3,094.00 USD
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Adjustable Rebound & Compression Damping

State-of-the-art technology from motor sports for more performance on the road for your E46 3 series. The separate and independently adjustable rebound- and compression damping allows for an individual suspension setup for different uses and preferences. The unique patented system with its two-stage valves allows a rebound damping adjustment (comfort) and a compression adjustment (driving dynamics) in the low-speed range while the high-speed range which controls the driving safety, is fixed.
  • Individually adjustable rebound and compression
  • Infinitely variable rebound damping adjustment
  • 14-way adjustable compression damping
  • Unique, individually working damping force adjustment
  • Stainless steel technology "inox-line"
  • Individually height-adjustable - Front - 35-65mm, Rear - 35-65mm
  • TUV approved lowering range
  • High-quality component parts for long durability.



    This item fits the following BMWs:
    2001-2005 E46 BMW 325xi 330xi
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    BC Racing - Corporate Logo
    T#:4333542
    Part#: I-02-ER
    Back Ordered
    $ 1,935.00 USD
    Free Shipping
    $ 1,935.00 USD
    Free Shipping
    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#:4333520
    Part#: I-14-ZR-O
    Back Ordered
    $ 2,835.00 USD
    Free Shipping
    $ 2,835.00 USD
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    BC Racing's new ZR Series Coilovers bring a 3-way adjustable track ready coilover system to racers from novice to pro for a price not seen before in the performance suspension market. Each ZR Series Coilover system offers independent low speed and high speed compression adjustment and separate rebound adjustment. They also offer full height adjustability independent of piston travel and spring preload. On cars with McPherson struts the ZR Series comes standard with an inverted monotube damper with the steel braided Teflon coated line exiting the top of the damper to the external reservoirs that can be remotely mounted in the engine bay or boot. The ZR Series kits offer 30 clicks of rebound adjustment, 15 clicks of low speed compression adjustment, and 12 clicks of high speed compression. 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 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: * 3-way adjustable damping controls * External reservoir * Engineered for 100% track use * Inverted damper design. (depending on models) * Dual Piston design. (1 in 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
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    KW Suspension - Corporate Logo
    T#:11562
    Part#: 10220024
    Special Order: No Guaranteed ETA
    $ 1,924.00 USD
    Free Shipping
    $ 1,924.00 USD
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    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 = 35-65mm lowering; Rear = 35-65mm 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 an E46 Xi 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.

    Fitment Note: Wheel spacers may be required depending on wheel/tire sizing and ride height setting.




    This item fits the following BMWs:
    2001-2005 E46 BMW 325xi 330xi
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    BC Racing - Corporate Logo
    T#:4333519
    Part#: I-14-ZR-C
    Back Ordered
    $ 2,835.00 USD
    Free Shipping
    $ 2,835.00 USD
    Free Shipping
    BC Racing's new ZR Series Coilovers bring a 3-way adjustable track ready coilover system to racers from novice to pro for a price not seen before in the performance suspension market. Each ZR Series Coilover system offers independent low speed and high speed compression adjustment and separate rebound adjustment. They also offer full height adjustability independent of piston travel and spring preload. On cars with McPherson struts the ZR Series comes standard with an inverted monotube damper with the steel braided Teflon coated line exiting the top of the damper to the external reservoirs that can be remotely mounted in the engine bay or boot. The ZR Series kits offer 30 clicks of rebound adjustment, 15 clicks of low speed compression adjustment, and 12 clicks of high speed compression. 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 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: * 3-way adjustable damping controls * External reservoir * Engineered for 100% track use * Inverted damper design. (depending on models) * Dual Piston design. (1 in 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
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    BC Racing - Corporate Logo
    T#:4333503
    Part#: I-14-RM-O
    Back Ordered
    $ 1,495.00 USD
    Free Shipping
    $ 1,495.00 USD
    Free Shipping
    BC Racing has made a name for themselves in the automotive enthusiast communities by developing adjustable, street-and-track capable coilover kits for over a decade that are not only extremely effective, but also don't brake the bank! 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 RM series feature high quality damping adjustable monotube inverted dampers at the front or front and rear, depending on vehicle. The RM coilovers offer the majority of the features of the BR series but with the additional benefit of the inverted damper unit. Inverting the damper unit brings with it a number of advantages. The large 42mm damper rod and inverted design gives the inverted damper units much greater strength and resistance to side loadings. By reducing flex the RM inverted units lead to more consistent steering geometry resulting in more predictable and responsive handling. 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 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: Highly Customizable Inverted Mono-Tube Damper Linear Piston And Damping Curve Height Adjustment Independent Of Spring Compression 30-Clicks Of Simultaneous Compression/Rebound Adjustment Front Camber Plates Standard On Applicable Kits Rear Camber Plates Available For Applicable Kits Custom Spring Rates And Swift Spring Compatible Custom Valving Or Valving Paired For Custom Spring Rates 1-Year Warranty Against Manufacturers Defect Fully Rebuildable NOTE: LEAD TIMES WILL BE 4-8 WEEKS.
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    BC Racing - Corporate Logo
    T#:4333551
    Part#: I-14-ER-O
    Back Ordered
    $ 1,935.00 USD
    Free Shipping
    $ 1,935.00 USD
    Free Shipping
    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#:4319923
    Part#: I-02-HM
    Back Ordered
    $ 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#:51320859
    Part#: I-90-ZX
    Back Ordered
    New Item
    $ 2,565.00 USD
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    $ 2,565.00 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 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 Convertible—which lacks the structural rigidity of its coupe counterparts—the ZX Series' advanced damping provides the stability needed to maintain a flat cornering attitude. The system features bearing-mounted spring platforms to eliminate "spring binding" or popping during tight maneuvers. Fully rebuildable and customizable, the ZX Series is a long-term investment in the competitive potential of your BMW. Key Features: Enhanced Thermal Management: External canisters keep fluid away from brake heat, maintaining valving accuracy lap after lap. Camber Adjustable Top Mounts: High-quality aluminum plates eliminate factory rubber "mush," providing direct, unmediated steering feedback. Independent Ride Height: Threaded bottom mounts allow for ride height changes without sacrificing suspension travel or preload. Patented Concave Locking Ring: BC Racing’s unique design ensures lower mounts remain securely locked, even under extreme track vibration. Custom Valving Available: Each kit can be custom-valved to match specific driver preferences or extreme aero/tire setups. Specifications: Vehicle Fitment: 2000–2006 BMW 3-Series (E46) Convertible (Excludes M3 models). Spring Rates (Default): Front: 6 kg/mm | Rear: 10 kg/mm (Swift Springs standard). Spring Type: Genuine Swift Springs for reduced unsprung weight. Piston Design: Linear Twin-Piston with remote canister valving. Warranty: 2-Year limited manufacturer's warranty.
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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#:51320855
    Part#: I-90-ER
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    New Item
    $ 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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    BC Racing - Corporate Logo
    T#:51355985
    Part#: I-131-DS
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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#:51320850
    Part#: I-90-RM
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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#:51320857
    Part#: I-90-ZR
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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#:51320856
    Part#: I-90-HM
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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#:51355994
    Part#: I-121-HM
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    For the E46 M3 Convertible owner who demands uncompromised geometry control, the BC Racing HM Series offers a motorsport-first engineering solution. By utilizing an inverted strut layout with a much larger internal piston shaft, the HM Series excels in maintaining wheel alignment during extreme lateral cornering—a critical factor for the MacPherson strut-equipped M3. The addition of external reservoirs ensures the damping fluid remains cool, preserving valving accuracy lap after lap. Standard front pillowball camber plates eliminate factory rubber "mush," providing direct and unmediated steering feedback. Because convertibles often require higher roll stiffness to compensate for chassis flex, the HM Series’ 12kg rear spring rate provides the stability needed to keep the car planted and responsive. Key Features: Enhanced Side-Load Resistance: The inverted design handles high lateral loads longer than traditional upright dampers without fatigue. Reduced Damper Fade: External canisters move fluid away from brake heat to maintain consistent lap times. 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 track conditions. Fully Rebuildable: All components are individual and replaceable, ensuring the long-term serviceability of the system. Specifications: Vehicle Fitment: 2000–2006 BMW M3 Convertible (E46 Chassis). Spring Rates (Standard): Front: 8 kg/mm | Rear: 12 kg/mm (Swift Springs). Hardware: Black chrome-plated steel shock bodies and 6061-T6 aluminum components. Adjustment Type: Independent ride height, spring preload, and 2-way damping. Warranty: 1-Year limited manufacturer's warranty.
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    BC Racing - Corporate Logo
    T#:51356016
    Part#: I-121-ZX
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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#:51320846
    Part#: I-90-DS
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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#:51356002
    Part#: I-121-ZR
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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#:51355989
    Part#: I-121-RM
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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#:51355992
    Part#: I-121-ER
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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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    E46 Rear Chassis/Subframe Reinforcement Kit
    10X Entries Into Our F80 M3 Sweepstakes
    Turner Motorsport - Corporate Logo
    T#:91
    Part#: TDR4675412
    In Stock
    Sale - Save 35% $ 193.99

    This product was last offered at the strikethrough price on
    06-13-2026

    $ 125.49 USD
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    $ 125.49 USD
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    Updated in 2020 to provide additional reinforcement! The E46 rear driveline and suspension are very similar to that of the E36. An unfortunate side effect of this is that the E46 also shares some of the same problems as the E36. One of these problems is the rear mounting points for the subframe, which can rip out from their spots in the sheet metal. This happens because the rear differential transmits the torsional load from the engine through the subframe, then into the chassis. This constant loading and unloading weakens the sheet metal and causes it to fatigue and separate from the chassis. BMW tried to fix this problem in the E46 by placing a cross member on the front two mounting points of the subframe. This cross member keeps the front mounting points from having problems by placing the bushing and the stud in double-sheer, thus reducing the twisting action on the sheet metal. The unfortunate side effect of this is that the load from the front of the subframe now gets transmitted to the left rear of the subframe. This is where we have seen many failures of the chassis on low mileage street cars and race cars. BMW has also tried to prevent the issue by injecting foam into the open space between the underside of the chassis and the top of the trunk. This seems to work but that does not address the issues of the spot welds failing on the sheetmetal. It can also make any additional work there harder and almost impossible to weld against. Our reinforcement kit has proven over and over again to be effective and the easiest to work with in the long run.

    This product reinforces the chassis sheet metal at the subframe mounting points. We do this by thickening the metal and distributing the load over a larger area. This kit will save time when repairing the chassis, and is also strongly recommended as a preventative maintenance item.

    Photo Gallery: E46 Subframe Failure / Repair

    Click here for installation instructions.

    This item fits the following BMWs:
    1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
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    Adjustable Front Sway Bar End Links - 215-275mm
    Please measure before purchasing. For lowered or custom applications. Will not fit fact...
    10X Entries Into Our F80 M3 Sweepstakes
    10X Entries For Our Spin To Win Sweepstakes!
    ECS - Corporate Logo
    T#:39025508
    Part#: 053153LA01
    In Stock
    Sale - Save 20% $ 183.99

    This product was last offered at the strikethrough price on
    06-14-2026

    $ 147.19 USD
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    Sale - Save 20%
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    This product was last offered at the strikethrough price on
    06-14-2026

    $ 147.19 USD
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    Upgrade your BMW's suspension with ECS Tuning Adjustable Sway Bar End Links, designed to provide up to 60mm (2.36") of adjustability. These end links allow you to eliminate sway bar preload or fine-tune it for specific racing needs and corner balancing. When installed, they improve drivetrain clearance and enhance sway bar responsiveness by reducing deflection, ensuring superior handling. Perfect for lowered vehicles using springs, coilovers, or air-ride suspension systems, these adjustable sway bar end links allow you to remove unwanted preload caused by changes in the center-to-center distance between sway bar mounting points. By adjusting the end links to a neutral position, you eliminate sway bar preload, enhancing suspension performance in various driving conditions.

    The main body of the ECS Sway Bar End Links is crafted from strong, lightweight 6061-T6 billet aluminum and anodized red for superior corrosion resistance. Featuring left and right-hand threaded center sections and machined hex wrench fittings, these end links allow for quick and easy on-the-car adjustments. Zinc-plated hardware ensures secure and lasting adjustments, while the heavy-duty ball joint ends come with weather-resistant rubber boots and stainless steel wire retainers, providing superior protection against salt, rain, and ozone for extended durability. Each kit also includes zinc-plated Nyloc nuts and hardened steel washers for secure installation and improved contact surface on the sway bar.

    These end links are designed, engineered, and rigorously tested by ECS Tuning to ensure the highest quality. Whether you have a lowered or stock suspension, these adjustable sway bar end links are the perfect upgrade, offering a high-quality, heavy-duty replacement that fits your specific needs.

    Features:

    Range of Adjustment: 215mm (8.46") to 275mm (10.82") 6061-T6 Billet Aluminum Construction: Red anodized for superior corrosion resistance Zinc-Plated Hardware: Provides durability and superior corrosion protection Right and Left-Hand Threaded Center Sections: Quick and simple on-the-car adjustments Heavy-Duty Ball Joints(M10x1.5): Weather-resistant rubber boots and stainless steel wire retainers for long-lasting durability

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    BMW E30 E36 E46 Z3 Rear Shock Mount - Priced Each
    10X Entries Into Our F80 M3 Sweepstakes
    Bilstein - Corporate Logo
    T#:344298
    Part#: 12-117109
    In Stock
    38% off MSRP $ 47.00

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

    $ 29.00 USD
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    38% off MSRP
    $ 47.00

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

    $ 29.00 USD
    Free Shipping
    BMW E30 E36 E46 Z3 Rear Shock Mount - Priced Each offers a reliable and solid mounting point for your vehicle's rear suspension. Over time, rear shock mounts can wear out, leading to squeaking and rattling noises when driving over bumps or potholes. Replacing the old mounts ensures a quieter ride and secure suspension mounting. This rear shock mount is sold individually, making it easy to purchase the exact number needed for your vehicle.
    • Reduces noise: Eliminates squeaks and rattles from worn mounts.
    • Improves ride quality: Ensures a smoother and quieter driving experience.
    • Secure fit: Provides a solid mounting point for the rear suspension.
    • Durable construction: Designed to withstand long-term use and stress.
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    Turner Motorsport - Corporate Logo
    T#:555366
    Part#: 017738TMS02
    In Stock
    Sale - Save 18% $ 367.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 299.99 USD
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    Sale - Save 18%
    $ 367.99

    This product was last offered at the strikethrough price on
    05-03-2026

    $ 299.99 USD
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    Our sealed Monoball Rear Trailing Arm Bushings (RTAB) are the best solution for completely eliminating deflection and unwanted toe changes on the rear of the E36, E46, and Z4. While rubber and urethane bushings flex during load, the toe can change widely giving you nervous and unpredictable handling. These RTABs have a solid aluminum housing with a high-quality sealed OE bearing. These bushings were developed from years of competition use in various racing and HPDE events. There is simply no better RTAB unless your racing class rules prohibit the use of mono or spherical bearings.

    The rear trailing arm bushings take a lot of abuse from acclerating, braking and cornering. The stock rubber bushings are just not up to the task of keeping rear wheel alignment in spec for very long, especially if you have upgraded to stickier tires and a better suspension. The pliable rubber flexes and twists which slows down reaction time and leaves you with a car that feels nervous and 'tail happy'. Urethane helps to control the alignment but issues with fitment, maintenance, and longevity keep us from recommending urethane on anything but a street car. We also offer a Delrin RTAB for cars that must conform to certain racing class rules. These sealed spherical bearings are the best at controlling rear toe alignment.

    Our aluminum RTABs are very well made - high grade aluminum alloy and steel CNC'd out of a billet by an ISO 9001 certified manufacturer, each component is either hardcoated or nickel plated. While multiple manufacturers offer two piece designs, our research showed that a one piece bushing is a better design featuring a sealed bearing to keep contaminants out extending the life of the bearing.

    Features:

    Key Benefits:

    • Rear Trailing Arm Monoball eliminates unwanted deflection, maintaining alignment settings and minimizing wheel hop.
    • Allows full rear trailing arm articulation for low friction movement and eliminates binding found in rubber and poly bushings.
    • Completely streetable: utilizes an OES Lemforder brand sealed, greased ball joint for an extremely long service life with no increase to NVH.

     

    Design Features:

    • Housing: Billet CNC 6061-T6 aluminum, type II anodized for exceptional durability and corrosion resistance
    • Bearing: OE Mercedes/lemforder 2043520027 Sealed ball joint
    • Bearing inserts: CNC machined 303 stainless steel.
    • Rebuildable

    Clickhere for installation instructions.

    This item fits the following BMWs:
    1992-1998 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
    1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
    2003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe

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    Turner Motorsport - Corporate Logo
    T#:304099
    Part#: TSU9940B77
    Special Order: No Guaranteed ETA
    Sale - Save 5% $ 509.99

    This product was last offered at the strikethrough price on
    06-13-2026

    $ 484.49 USD
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    Sale - Save 5%
    $ 509.99

    This product was last offered at the strikethrough price on
    06-13-2026

    $ 484.49 USD
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    With rubber bushing for comfort on the street with adjustability for street and track performance. Made in the USA!
    JT Design - Corporate Logo
    T#:3666
    Part#: JTD909
    Back Ordered
    $ 99.99 USD
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    $ 99.99 USD
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    Made in the USA These are the best rear shock mounts that we have found for the E30, E36, E46, Z3 & E85 Z4! Featuring CNC-machined billet aluminum mounting base with a replaceable urethane bushing (replacement bushings are just $15 and are changed in minutes!). These mounts are excellent for either street or track because of their low NVH (noise, vibration, and harshness). Plus, the superior design will far outlast the life of stock mounts - maybe even the car itself. You'll never think twice about your shock mounts again! These shock mounts are a direct replacement of the stock mounts so they fit all shocks with the BMW-standard 10mm shock shaft, including all factory and OEM shocks (Boge, Sachs, etc), H&R coil overs, Bilstein shocks and PSS, PSS9, PSS10 coil overs (except the B16 Ride Control Kit). This is sold as a package with new shock mount gaskets, washers, and Nyloc nuts.

    Must re-use factory cupped washers!

    This item fits the following BMWs:
    1984-1991 E30 BMW 318i 318is 318ic 325e 325es 325i 325ic 325is 325ix M3
    1992-1998 E36 BMW 318i 318is 318ti 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
    1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
    1997-2002 Z3 BMW Z3 1.9 Z3 2.3 Z3 2.5i Z3 2.8 Z3 3.0i M Roadster M Coupe
    2003-2008 Z4 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe
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    Bilstein - Corporate Logo
    T#:344114
    Part#: 24-024532
    In Stock
    $ 183.00 USD
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    $ 183.00 USD
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    Position:  Rear, Left or Right
    Setting:  Sport/HD, for lowered or stock suspensions

    Rear Bilstein shock. This shock is classified as a Sport and HD for E36 M3 and E46 325xi/330xi applications. It's about 20% stiffer than a factory shock but has the correct extended and collapsed lengths to be used with either a stock or lowered suspension. Includes dust boot, top nut, and lower mount washer (critical!). Price is per shock.

    Click here for important installation information.

    This Bilstein Rear Shock fits the following BMWs:
    1994-1999  E36  M3, M3 Convertible
    2001-2005  E46 BMW  325xi 330xi
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    Megan Racing - Corporate Logo
    T#:582121
    Part#: MRSBE46FU1P
    In Stock
    $ 99.99 USD
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    $ 99.99 USD
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    Enhance Your BMW's Cornering Performance with This Strut Tower Bar

    Looking to minimize chassis flex during demanding cornering with your BMW? Your search ends here. This meticulously crafted front strut tower bar is the solution you've been seeking. Tailored for BMW enthusiasts, it expertly connects the front strut towers, significantly reducing chassis flex and elevating stability during intense cornering maneuvers.

    Key Features:

    • Chassis Flex Mitigation: Engineered with precision, this strut tower bar effectively mitigates chassis flex, ensuring your BMW maintains a solid and responsive stance during aggressive cornering.
    • Improved Cornering Performance: Experience a notable enhancement in your BMW's cornering performance, granting you more control and confidence in every turn.
    • Custom Fit for BMW: This bar is exclusively designed for BMW vehicles, ensuring a perfect fit and maximum performance enhancement.
    • Enhanced Stability: By connecting the front strut towers, it elevates overall stability, making your BMW even more poised and responsive on the road.
    • Turner Motorsport Approved: With the backing of Turner Motorsport's reputation for quality, rest assured that this strut tower bar meets the highest standards.

    Elevate your BMW's cornering performance and reduce chassis flex with this front strut tower bar. Turner Motorsport has the solution you've been looking for.

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    Turner Motorsport - Corporate Logo
    T#:394376
    Part#: 013276TMS
    Ships on Feb 11, 2027
    Sale - Save 20% $ 504.99

    This product was last offered at the strikethrough price on
    06-13-2026

    $ 403.99 USD
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    Stock rubber front control arm bushings are designed to allow significant fore/aft movement of the front wheels to help absorb road impacts.  This soft flexible design maximizes daily driving comfort and helps to add the “luxury” feeling to your BMW, but it is far from ideal for the performance or racing enthusiast that is looking for optimal handling and braking performance.  Being a bonded rubber bushing that is constantly twisting and deflecting when in use, stock rubber bushings really take a beating and often fail prematurely, resulting in further degraded handling, braking shimmy or even clunking felt under your feet.

    In the past, the only upgrade option to improve handling of your E46 M3 was to replace the stock rubber with poly bushings, or delrin bushings that wear prematurely and are not serviceable or rebuild-able.  While well-designed poly bushings can vastly improve handling characteristics and offer good road feel with minimal increase to NVH, they are still a compromise when it comes to ultimate handling and braking performance.

    Introducing the new Turner Front Control Arm Spherical Bearings!  The Turner engineering team set out to design a no-compromise solution that requires no modification and offers instantaneous cornering and braking response.  Our control arm bearings utilize a unique grease-able spherical bearing that is both serviceable and replaceable, with integrated dust seals to help keep dirt and moisture out.  This bearing offers considerable improvement in both precision and durability compared to other unsealed poly and delrin bushing inserts previously available, which can wear prematurely due to contamination.  The bearing assembly utilizes the highest quality materials, precision machining quality, and components to ensure a perfect fit and longest lasting component life possible.

    The result is the ultimate in terms of low friction, no binding, and no unwanted deflection, as well as exceptional steering precision, turn-in response, and direct braking feedback with minimal increase in NVH.  These spherical bearings are a must have for any track car, but are also completely street-able and are a great upgrade for any enthusiast that enjoys spirited driving.

    Features:

    Bearing

    • Extremely robust, greaseable, double lip sealed spherical bearing (Rated for 20,000lbf Dynamic, 90,000lbf Static). 

    Housing

    • 6061-T6, anodized housing with needle grease zerk for easy maintenance. 
    • In house designed knurled OD to provide the perfect fit for the wide range of housing diameters among brands. 

    Bearing Insert Arm adapter

    • Precision CNC machined Delrin, providing a tight fit between the bearing and the control arm. 

    Performance

    • Instant, crisp steering and braking response.
    • Easy to maintain, long lasting performance. 
    • Improved road feel without undesirable NVH.

    Grease before installation and with each oil service with high quality Moly grease for maximum service life.  Need a Grease tool?

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    Bilstein Coil Over Spanner Wrench Set (Notch Style)
    10X Entries Into Our F80 M3 Sweepstakes
    Bilstein - Corporate Logo
    T#:1702
    Part#: 19101X
    In Stock
    $ 22.03 USD
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    Bilstein Coil Over wrench set for some PSS, PSS9 and PSS10 kits. Consists of a Large wrench and a Small wrench for adjusting the spring perch (76.25mm) and lock ring (75.75mm) on coil overs that require the rectangular notch style head (not round pin style adjuster). Can also be used with other coil over kits (H&R, Moton, JRZ, etc).
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    E36/E46 Rear Adjustable Length Sway Bar End Links (Pair)
    10X Entries Into Our F80 M3 Sweepstakes
    Turner Motorsport - Corporate Logo
    T#:53
    Part#: TSU9913RS2
    In Stock
    $ 305.99 USD
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    These adjustable rear links are only required when using sway bar / swaybars with a suspension with a very low ride height, where it may be necessary to adjust the length of the end links for proper sway bar clearance from the drive axles or other suspension components. These suspensions are usually found only on race cars but this may also apply to street cars with sport springs/sport coil overs that are lowered a lot. On most street cars lowered 1.5" or less, the stock links will be fine.

    These end links feature a Heim joint, which allows enough lateral movement when disconnected to adjust the length of the link without removing the entire link from the car. This is particularly helpful when eliminating or adjusting preload while tuning the suspension. Similar links without this joint, can't be adjusted without totally removing the link from the car.

    Built-in grease fittings allow for occasional lube, and a packet of grease is included. These links are sold as a set, and include two end links and hardware for H&R and TMS sway bars (other brands may not need the hardware). 

    At their shortest setting they are 2.875" hole to hole and on their longest setting they are 3.5" hole to hole.

    *Note: these links will not work with factory or non-adjustable Eibach sway bars.

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    ECS Tuning Performance Adjustable Rear Control Arm Set - E36 E46 Z4 E...
    10X Entries Into Our F80 M3 Sweepstakes
    Earn 5% back in Turner Rewards on orders placed 10/28-10/31. Redeem 11/27-12/1. Terms & conditions apply
    ECS - Corporate Logo
    T#:376801
    Part#: 002608ECS01
    In Stock
    Sale - Save 25% $ 458.99

    This product was last offered at the strikethrough price on
    06-13-2026

    $ 344.24 USD
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    This product was last offered at the strikethrough price on
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    Stock rear lower control arms offer very little adjustment for alignment, especially in lowered vehicles, due to their use of an eccentric bolt. These aftermarket performance control arms from ECS Tuning are designed for maximum adjustability, allowing you to maximize handling and minimize tire wear.

    To ensure maximum reliability, ECS Tuning's control arms are constructed from strong, lightweight 6061-T6 aluminum and feature a 303 stainless steel center turnbuckle that offers over 8 degrees of fast and precise camber adjustment. The inner bushing is a stock style serviceable OEM bushing for long life and inexpensive maintenance.

    Features:

    Durable construction suitable for the daily driver and track car alike
    8+ degrees adjustment range for dialing in any suspension and wheel/tire setup
    Center located adjuster for maximum clearance during adjustment
    OEM-style bushing for long life and inexpensive service
    Black anodized 6061-T6 aluminum with 303 stainless steel turnbuckle
    Includes new hardware
    *With the exception of the stance community, most enthusiasts will need no more than a few degrees of adjustment range. Total adjustment often is dependent on wheel/tire clearances.

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    Bilstein Front Strut Mount - E39 E46 E60 E61 F07 F10
    10X Entries Into Our F80 M3 Sweepstakes
    Bilstein - Corporate Logo
    T#:344302
    Part#: 12-248940
    In Stock
    $ 58.00 USD
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    $ 58.00 USD
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    Complete front strut mount with bearing and retaining hardware
    4mm Heavy Duty Rear Shock Mount Reinforcement Plate Set
    For coupe models only
    10X Entries Into Our F80 M3 Sweepstakes
    ECS - Corporate Logo
    T#:376177
    Part#: 002478ECS01KT
    In Stock
    Sale - Save 25% $ 85.99

    This product was last offered at the strikethrough price on
    06-13-2026

    $ 64.48 USD
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    Sale - Save 25%
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    This product was last offered at the strikethrough price on
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    A very common weak point on the 3 series BMW is the sheetmetal of the rear shock tower. The sheetmetal here is relatively thin and very susceptible to stress and fatigue. A worn out shock will bottom-out more often and this energy is transferred through the bump stop and into the metal chassis. Stiffer shocks and shock mounts also put more stress on the sheetmetal. Factor in age, mileage, and environmental conditions and it's not a surprise that we see shock tower failures often. BMW addressed this issue with reinforcements of their own but our's are thicker for additional strength. This kit mounts on top of the shock tower and can either be bolted or welded in place. Because of the shape of the rear shock tower, these do not fit cabrio/convertible cars. 
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    Turner Motorsport - Corporate Logo
    T#:340738
    Part#: TSU9980006
    In Stock
    Sale - Save 15% $ 259.99

    This product was last offered at the strikethrough price on
    06-13-2026

    $ 220.99 USD
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    This product was last offered at the strikethrough price on
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    Made in the USA TMS rear subframe bearings are designed to limit rear control arm movement relative to the subframe. The stock BMW subframe bushings are made out of rubber, which allows variance in suspension position due to deformation and compression. A race car needs to have all suspension points remain in place for proper setup. By using high grade aircraft aluminum alloy and high performance race bearings, the TMS bushing replacements are both lightweight and strong. The casing is designed so that if maximum motion occurs, the load will be evenly distributed throughout the casing. Our flanges are designed to spread the load on the subframe and limit movement. The bearing we use is an extra wide race bearing to distribute the load over a broader area. Each piece is anodized or nickel plated to withstand corrosion. These bushings are a perfect compliment to the TMS lower camber arms.

    Click here for installation instructions.

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    E36, E46 Rear Shock Tower Mount Reinforcement Kit
    10X Entries Into Our F80 M3 Sweepstakes
    Turner Motorsport - Corporate Logo
    T#:3440
    Part#: TSU9975100
    In Stock
    Sale - Save 15% $ 58.99

    This product was last offered at the strikethrough price on
    06-13-2026

    $ 50.14 USD
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    Sale - Save 15%
    $ 58.99

    This product was last offered at the strikethrough price on
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    $ 50.14 USD
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    Made in the USA A very common weak point on the 3 series BMW is the sheetmetal of the rear shock tower. The sheetmetal here is relatively thin and very susceptible to stress and fatigue. A worn out shock will bottom-out more often and this energy is transferred through the bump stop and into the metal chassis. Stiffer shocks and shock mounts also put more stress on the sheetmetal. Factor in age, mileage, and environmental conditions and it's not a surprise that we see shock tower failures often. BMW addressed this issue with reinforcements of their own but our's are thicker for additional strength. This kit mounts on top of the shock tower and can either be bolted or welded in place. Because of the shape of the rear shock tower, these do not fit cabrio/convertible cars.

    This item fits the following BMWs:
    1992-1999 E36 BMW 318i 318is 318ti 323is 325i 325is 328i 328is M3 - not for convertibles
    1999-2005 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3 - not for convertibles
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    ECS - Corporate Logo
    T#:378193
    Part#: 002447ECS03KT
    In Stock
    Sale - Save 25% $ 197.99

    This product was last offered at the strikethrough price on
    06-13-2026

    $ 148.49 USD
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    Sale - Save 25%
    $ 197.99

    This product was last offered at the strikethrough price on
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    $ 148.49 USD
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    Worn rubber differential mounts will lead to the differential twisting and shifting around in the rear subframe. Not only will this be noisy but it's bad for driver confidence and bad for the chassis as well. Even on fresh rubber bushings the differential has deflection and twist, especially if the car has been modified for more torque. Since the differential is centrally mounted in the rear subframe, with all suspension mounts interconnected, a differential with too much deflection will affect handling and could even damage the rear subframe.

    These 88A urethane E46 M3 diff mounts are much stiffer than stock but still not as solid as our Turner aluminum/Delrin bushings. This set will resist twisting much better than the stock rubber mounts. Included is the front diff mount and two rear mounts in the cover.

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    IRP - Individual Racing Parts - Corporate Logo
    T#:401372
    Part#: IRPCA-ST
    In Stock
    $ 233.99 USD
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    $ 233.99 USD
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    If you are looking for a wider range of camber adjustability in the rear of you car, the IRP Adjustable rear lower control arm is exactly what you need! Built to be much stronger than stock, these rear control arms feature inner monoball bushings and are built of steel, reducing the weight as well. These are perfect for a lowered car or for a track car that needs a greater level of rear adjustment.

    Features:

    • Strong Steel Construction
    • Adjustable
    • Painted Yellow For Corrosion Protection
    • Weight Reduction
    • Monoball Inner Mount

    This item fits the following BMWs:
    1992-1999 E36 BMW 318i 318is 318ic 323is 323ic 325i 325is 325ic 328i 328is 328ic M3
    1999-2006 E46 BMW 323i 323ci 325i 325ci 325xi 328i 328ci 330i 330ci 330xi M3
    2003-2008 E85 BMW Z4 2.5i Z4 3.0i Z4 3.0si Z4 M Roadster M Coupe

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