Hardrace Q0620 22mm Rear Sway Bar / BMW 3 Series – Z4 – Toyota Supra

Hardrace Q0620 22mm Rear Sway Bar / BMW 3 Series – Z4 – Toyota Supra

Improve the handling balance and cornering stability of your BMW 3-Series, BMW 4-Series, BMW Z4, or Toyota Supra with the Hardrace Q0620 Rear Sway Bar. With a 22mm diameter and a stiffness rating of 150% over the factory 18.4mm OE rear bar, this upgrade is designed to reduce body roll and give the car a more stable, controlled feel through corners.

The rear sway bar connects the suspension across the rear axle, helping control weight transfer during cornering. By increasing rear roll stiffness, it can improve handling response, sharpen turn-in balance, and help fine-tune understeer or oversteer characteristics depending on the vehicle setup.

Built with a hollow internal structure and heat-treated for durability, the Hardrace Q0620 offers strong performance without unnecessary weight. Its OE direct replacement design allows straightforward installation while providing a noticeable improvement in grip, stability, and driver confidence during spirited road use, high-speed cornering, and track sessions.

Key Features:
. Hardrace item number Q0620
. Rear sway bar upgrade
. 22mm diameter
. 150% stiffer compared to the 18.4mm OE rear bar
. 5 pcs/set
. OE direct replacement design
. Hollow internal structure
. Heat-treated construction
. Helps reduce body roll
. Improves grip and handling response
. Helps correct understeer or oversteer balance
. Increases stability during high-speed cornering
. Suitable for fast road and track-focused builds

Fitment:
. BMW 3-Series G20 2019-present
. BMW 320, 320D, 330, 330D, 330e, 318D, M340
. BMW 4-Series G22 Coupe 2020-present
. BMW 4-Series G23 Convertible 2021-present
. BMW 4-Series G26 Gran Coupe 2021-present
. BMW 420, 420 xDrive, 420D, 420D xDrive, 430, 430 xDrive, 430D, 430D xDrive, 440D, 440D xDrive, M440 xDrive
. BMW Z4 G29 2.0 Twin Turbo 2019-present
. BMW Z4 G29 M40i 3.0 Twin Turbo 2019-present
. Toyota Supra GR A90 2.0 Turbo 2020-present
. Toyota Supra GR A90 3.0 Turbo 2019-present