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Rear Sway Bar

Interested in upgrading your BMW's rear sway bar? We carry a variety of rear sway bar options for your BMW. Check out our front sway bar section or front & rear if you're interested in a complete solution.

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ECS - Corporate Logo
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
Free Shipping
Sale - Save 15%
$ 244.99

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

$ 208.24 USD
Free Shipping
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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Whiteline - Corporate Logo
T#:362706
Part#: BBR44
Ships in 3 Business Days
$ 274.99

This product was last offered at the strikethrough price on
08-12-2026

$ 249.99 USD
Free Shipping
$ 249.99 USD
Free Shipping

Sway bars are an essential upgrade when trying to get the best handling capabilities out of your BMW. Stock sway bars allow for too much play and excessive body roll, not keeping the wheels as firmly planted as they should be. Whiteline offers their performance sway bar kits that are designed to improve your BMW's handling characteristics and come with upgraded polyurethane bushings as well.

This Whiteline 20mm sway bar gives you more grip, better handling, and better outright performance. Sway bar upgrades are one of the best dollar-for-dollar investments you can make, improving your BMW's handling dynamics without affecting the comfort or ride quality.

This part fits the following BMWs:
2008 - 2013 E82 1 Series Coupe 128i 135i 135is 1M Coupe
2007- 2013 E88 1 Series Convertible 128i 135i
2006 - 2008 E90 323i 325i 325xi 328i 328xi 330i 330xi 335i 335xi
2009-2012 E90 323i 323i 328i 328xi 335d 335i 335i xDrive 335xi
2006 - 2009 E91 325xi 328i 328xi
2009 - 2011 E91 328i 328xi 
2007 - 2013 E92 328i 328xi 335i 335xi
2007 - 2013 E93 328i 335i

 

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ECS - Corporate Logo
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
Free Shipping
Sale - Save 10%
$ 110.99

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

$ 99.89 USD
Free Shipping
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 - Corporate Logo
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
Free Shipping
Sale - Save 10%
$ 113.99

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

$ 102.59 USD
Free Shipping
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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