BMW M3 Rear Sway Bar — Whiteline 26mm Heavy Duty Adjustable (2015–2018). This rear sway bar is engineered to reduce body roll and improve mid-corner balance for the 2015–2018 M3, providing a tangible handling upgrade for enthusiasts who drive spiritedly on road or track.

The Whiteline 26mm heavy duty blade design spreads lateral loads more evenly across the tires, helping increase cornering grip and consistent tire contact through transitions. Its 3-point adjustable geometry lets you fine-tune rear roll stiffness to suit your driving style or track conditions without significantly affecting ride comfort. Built as a rear suspension stabilizer bar assembly, this unit is intended as a durable, performance-focused replacement for the factory rear bar and can also be used on compatible 2015–2020 M4 models where applicable.

Features

• Rear sway bar for BMW M3 (2015–2018); compatible with select 2015–2020 M4 applications
• 26mm heavy-duty blade construction for increased stiffness and longevity
• 3-point adjustable arms to tune rear roll stiffness and balance
• Reduces body roll, improves cornering grip and load distribution
• Supplies a direct suspension stabilizer bar assembly for performance upgrades

If you have questions about fitment or setup, call us directly — we’re happy to help choose the right setting for your driving goals. We offer installation and customization services at both our Austin, Texas and Los Angeles, California area locations; please contact us at 512-982-9393 (TX) or 562-981-6800 (CA). If you’re considering purchasing multiple items, contact us for possible shipping discounts. We install on premises at both locations.

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