BMW M4 Sway Bars - Rear - Whiteline - 26mm Heavy Duty Adjustable - `15-`20. A direct-fit rear sway bar designed for the 2015–2020 BMW M4, the Whiteline 26mm heavy duty adjustable bar reduces body roll and helps improve cornering balance with tunable stiffness.

This Whiteline rear sway bar is engineered to control lateral weight transfer and spread cornering loads more evenly across the tires. The heavy-duty 26mm blade construction and multi-point adjustment let enthusiasts tune rear roll stiffness to match driving style or track needs. Installation is straightforward for a direct-fit suspension stabilizer bar assembly, and the design focuses on improved handling and more consistent tire contact without a notable compromise to daily ride comfort.

Features

• 26mm heavy-duty blade construction for increased torsional stiffness
• 3-point adjustable end positions to tune rear roll control
• Direct-fit for BMW M4 model years 2015–2020
• Suspension stabilizer bar assembly to reduce body roll and improve cornering balance

If you have questions or want help selecting the right setup, call us directly — we're happy to advise. We have two locations offering installation and customization services in Austin, Texas and the Los Angeles, California area: 512-982-9393 (TX) and 562-981-6800 (CA). If you are considering purchasing multiple items, contact us for shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov