ECS Rear Sway Bar for BMW 3 Series E46 (1999-2005)

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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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E46 Performance Rear Sway Bar - 21mm
E46 Performance Rear Sway Bar - 21mm
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
ECS - Corporate Logo
T#:363191
Part#: 007277ECS02A
In Stock
Sale - Save 15% $ 273.99

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

$ 232.89 USD
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Sale - Save 15%
$ 273.99

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

$ 232.89 USD
Add to Wish List

Enhance Cornering Performance with Thicker Sway Bars

If you're looking to take on corners more aggressively, consider upgrading to thicker sway bars. Thicker sway bars provide increased stability, minimize body roll, and ensure better traction on the road, allowing for more confident and aggressive cornering. The best part is, you can enjoy improved handling without sacrificing your ride quality.

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ECS Billet Rear Sway Bar Brackets With Polyurethane Bushings - Pair - E9x Non-M, E46, E53
ECS Billet Rear Sway Bar Brackets With Polyurethane Bushings - Pair -...
affirm Starting At 0% APR - Subject To Eligibility. See Lending Terms
For use with Aftermarket 23mm rear sway bar
ECS - Corporate Logo
T#:3443018
Part#: 016921LA09
Ships on Jul 28, 2026
Sale - Save 10% $ 113.99

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

$ 102.59 USD
Free Shipping
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Sale - Save 10%
$ 113.99

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

$ 102.59 USD
Free Shipping
Add to Wish List
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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