Rear Sway Bar

Steel Sway Bar Bracket Upgrade Kit - E39 5-Series

Offers superior strength vs the OE bracket!

T#:1002338

Part#: 33552283159SKT

In Stock

Sale - Save 11% $ 109.99

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

$ 98.17 USD

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$ 109.99

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

$ 98.17 USD

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Includes both brackets and all new installation hardware. The stock aluminum sway bar brackets in the E39 5-Series suffer from a serious design flaw that has resulted in many people experiencing snapping and misshapen brackets, a mounting tab that is simply too weak. Not only was the OE bracket not designed to handle the loads required, but the aluminum construction was also easily fatigued over time, making an already questionable bracket weaker over time. This sub-par construction eventually leads to the mounting tab breaking off, releasing all tension on the sway bar, causing sloppy handling feel and knocking noises in the rear of your BMW. Luckily for all of us, the fix is simple. By swapping the construction from aluminum to steel, while maintaining all of the original dimensions, these brackets offer 3 times the mounting strength versus the OE brackets! This ensures that no matter how many track days or spirited weekends of driving your BMW sees, you can rest easy knowing your rear sway bar is securely mounted. To top it all off, these brackets are also zinc-coated, keeping away rust and corrosion for years. Why go steel E39 brackets instead of using E38 brackets? Fitment. Although the E38 bracket is a commonly suggested upgrade, it does require a bit of modification to fit properly and usually results in a bit of bushing compression, making your sway bar difficult to install.

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Turner Motorsport- Upgraded Rear Sway Bar (21mm) - E46 Non M ...

T#:303251

Part#: E46-R21-SWAY

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Sale - Save 18% $ 322.99

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

$ 265.56 USD

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Sale - Save 18%

$ 322.99

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

$ 265.56 USD

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ECS Performance Rear Sway Bar - 15mm - E9X E82/88 Non-M

T#:363189

Part#: 007278ECS02A

In Stock

Sale - Save 15% $ 244.99

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

$ 208.24 USD

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Sale - Save 15%

$ 244.99

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

$ 208.24 USD

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Looking to improve your car's handling in the corners? ECS Tuning's rear non-adjustable sway bar is a cost-effective way to limit body roll and keep your wheels planted when entering a corner at higher speeds. Sway bars are a great way to improve handling without sacrificing ride quality or reliability! Sway bars are typically sold as a front and rear set to balance the handling. But a rear sway bar only can also have excellent benefits, especially on a street car. Going with a larger rear bar will improve steering and handling even at low-moderate speeds. ECS has specified a 15mm sway bar that has been fine-tuned for use on the E9X and E82 models. Urethane bushings with a reinforced inner core that requires no lubrication are included.

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Turner Oversized Rear Sway Bar - F2x/F3x

T#:555390

Part#: 024452TMS01

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$ 501.99

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

$ 313.99 USD

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$ 313.99 USD

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Experience less body roll, massive improvements to the handling characteristics of your vehicle, and virtually no sacrifice in ride quality with this 22mm Adjustable Rear Sway Bar.

SpecE46 Turner Motorsport Sway Bar Set

T#:340451

Part#: SE46-SWAYBARS

In Stock

Sale - Save 3% $ 608.99

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

Starting at $ 590.72 USD

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Sale - Save 3%

$ 608.99

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

Starting at $ 590.72 USD

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We put together this special sway bar set for the SpecE46 racing class (SE46) and any other E46 that gets heavy track time. We use the 30mm M3 front bar combined with the 21mm E46 non-M rear bar. From our time racing the E46 in World Challenge, Grand-Am, and SCCA club racing we found that the E46 likes a stiffer sway bar and less spring rate. Taking the M3 front bar, which is solid, is exactly what we wanted. They are adjustable in the front (3-position) and the rear (2-position) to fine tune the handling. Bushings are included and new adjustable links are optional. These bars are crafted from a special spring steel that is both stronger and more resilient than competitive sway bars. They have been shot peened and heat treated, and feature precision forged ends.

Setup: The bars are adjustable so any driver can find an ideal setup for the type of driving they are doing. The sway bar becomes stiffer in the holes furthest from the end of the bar. The holes at the very end of the bar are the softest setting. We would generally recommend starting out with the front bar set to the stiffer setting and the rear bar positioned in the soft setting. Adjust to your liking from there. When using these in a non-SE46 setup (or other struts beside MCS) the strut housing may have to be rotated in the spindle so that the sway bar link lines up better with the sway bar tab on the strut.

Adjustable sway bar links are strongly advised to ensure that there is no pre-load on the bars. And to position the bar so that it has the correct clearance to other suspension components. Pre-load is when the bar is slightly stressed when it's on the car, from differing ride heights or from the chassis being slightly twisted. With the SE46 coil overs the adjustable links are a smart idea. If you have to force the links to fit the bar because it has tension then you have pre-load. Adjustable front or rear links can be added from the options listed below.

This item fits the following BMWs:
1999-2006 E46 BMW 323i 323ci 325i 325ci 328i 328ci 330i 330ci
2001-2006 SpecE46 BMW 330i 330ci

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Turner E46 M3 25mm Rear Sway Bar Bushing (Each)

T#:390032

Part#: 53110037

In Stock

Sale - Save 19% $ 71.99

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

$ 57.99 USD

Limited Qty Sale

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Sale - Save 19%

$ 71.99

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

$ 57.99 USD

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Replacement rear sway bar bushing for Turner E46 M3 25mm rear sway bar. This is one bushing (they are sold individually) and only fits on the Turner 25mm rear sway bar.

ECS Billet Rear Sway Bar Brackets With Polyurethane Bushings - Pair -...

For use with Aftermarket 23mm rear sway bar

T#:3443018

Part#: 016921LA09

Ships on Sep 29, 2026

Sale - Save 10% $ 113.99

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

$ 102.59 USD

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$ 113.99

This product was last offered at the strikethrough price on
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$ 102.59 USD

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The ECS Tuning Billet Rear Sway Bar Mounting Kit was designed, engineered, tested and quality inspected thanks by their Research and Development team in Wadsworth, Ohio facility. ECS ensures that the highest level of precision and quality is delivered throughout rigorous long term product testing and leading edge product development methods. This kit provides your vehicle with a more rigid mounting solution from the sway bar to chassis than the OEM steel brackets. With an improved sway bar mounting bracket and the included polyurethane sway bar bushings, you can expect to achieve an increase in rear sway bar effectiveness and less body roll as a result.

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ECS Billet Rear Sway Bar Brackets With Polyurethane Bushings - Pair -...

For use with OEM 13mm rear sway bar

T#:3180514

Part#: 016921LA01

Ships on Sep 29, 2026

Sale - Save 10% $ 110.99

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

$ 99.89 USD

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Sale - Save 10%

$ 110.99

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

$ 99.89 USD

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The ECS Tuning Billet Rear Sway Bar Mounting Kit was designed, engineered, tested and quality inspected thanks by their Research and Development team in Wadsworth, Ohio facility. ECS ensures that the highest level of precision and quality is delivered throughout rigorous long term product testing and leading edge product development methods. This kit provides your vehicle with a more rigid mounting solution from the sway bar to chassis than the OEM steel brackets. With an improved sway bar mounting bracket and the included polyurethane sway bar bushings, you can expect to achieve an increase in rear sway bar effectiveness and less body roll as a result.

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Turner Motorsport Rear 22mm Sway Bar Upgrade Kit - F30 RWD

T#:585235

Part#: 024452TMS05

Ships on Nov 2, 2026

Sale - Save 10% $ 529.99

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

$ 476.99 USD

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$ 529.99

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

$ 476.99 USD

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Reduce under-steer and body roll

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Steel Sway Bar Bracket Upgrade Kit - E39 5-Series

Turner Motorsport- Upgraded Rear Sway Bar (21mm) - E46 Non M ...

ECS Performance Rear Sway Bar - 15mm - E9X E82/88 Non-M

Turner Oversized Rear Sway Bar - F2x/F3x

SpecE46 Turner Motorsport Sway Bar Set

Turner E46 M3 25mm Rear Sway Bar Bushing (Each)

ECS Billet Rear Sway Bar Brackets With Polyurethane Bushings - Pair -...

ECS Billet Rear Sway Bar Brackets With Polyurethane Bushings - Pair -...

Turner Motorsport Rear 22mm Sway Bar Upgrade Kit - F30 RWD

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