Description
Whiteline BTR99Z provides rear 18mm 20-26 GR supra heavy duty adjustable sway bar.
How It Works
The sway bar contributes roll stiffness by resisting differences in suspension movement across the axle. Its effect depends on diameter, construction, mounting geometry and effective lever length. A change at one axle can alter understeer/oversteer balance; diameter alone does not establish a percentage increase in stiffness or guarantee more grip.
Key Specifications
- Manufacturer part number: BTR99Z
- Position: Rear
- Bar diameter: 18mm
- Adjustment: Adjustable
Installation & Selection
Check clearance to the exhaust, driveline and surrounding suspension throughout travel. Inspect brackets, mounting bushings and end links as part of installation. Select a suitable starting position if the bar is adjustable, then evaluate the vehicle’s balance before progressing to a firmer setting.
Vehicle Fitment
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2022-2025 | BMW | Z4 | M40i |
| 2020 | BMW | Z4 | M40i First Edition |
| 2020-2021 | BMW | Z4 | sDrive M40i |
| 2019-2025 | BMW | Z4 | sDrive30i |
| 2021-2022 | Toyota | GR Supra | A91 Edition |
| 2020-2026 | Toyota | GR Supra | Base |
| 2020 | Toyota | GR Supra | Launch Edition |
| 2020-2026 | Toyota | GR Supra | Premium |
