Whiteline Rear Sway Bar 24mm Adjustable – Subaru Models (inc. 2004-2007 WRX)
Maximum Rear Roll Stiffness for GD Subaru Applications
The Whiteline BSR36XZ is a 24mm 3-point adjustable rear sway bar for GD Subaru models including the 2004-2007 WRX. At 24mm, this is the maximum rear roll stiffness option for the GD WRX — appropriate for track-focused builds where aggressive rear anti-roll is the priority. Three adjustment positions provide fine-tuning within the performance range.
DETAILS
- 24mm 3-point blade adjustable rear sway bar — maximum GD rear stiffness
- Solid spring steel, silver powder coat
- Includes mount bushings and hardware
- 3 adjustment positions
- Fitment: 2004-2007 Subaru WRX and related GD models
Maximum Rear Stiffness for Track Use
The 22mm BSR36Z is for street and mixed-use applications. The BSR36XZ at 24mm is for track days, autocross, and dedicated performance builds where the rear bar is part of a complete, system-calibrated setup. Running 24mm rear without a matched front bar produces oversteer tendency on corner entry.
System Calibration Required
The BSR36XZ works best when paired with a matched front bar and performance springs. Correct endlink geometry — adjustable endlinks if the car is lowered — ensures the bar operates at zero preload and delivers its full rated stiffness.
Three Positions for Track Tuning
All positions are in the performance range. Start at middle and adjust based on handling feedback on your specific circuit and tyre combination.
Why Choose Whiteline
Whiteline has been engineering suspension components from their facility in Australia since 1979. Every product in their catalog is developed with a clear goal: measurable improvement in handling, stability, and tyre contact. Whiteline’s polyurethane bushings, sway bars, control arms, and alignment correction kits are engineered using finite element analysis and validated on track before they reach the market. Their components are direct-fit, bolt-on solutions designed for enthusiasts who want real performance gains without fabrication or custom work.
The RallySport Take
The maximum rear stiffness rear bar for the GD WRX platform. Track tool for track applications. Installation is a straightforward bar swap — remove the OEM bar, install the Whiteline unit with the provided polyurethane mount bushings, connect the endlinks. Start in the middle adjustment position and move from there. Adjustable endlinks are a worthwhile companion purchase if the car has been lowered, ensuring the bar operates at zero preload at the new ride height.
What’s in the Box
- 24mm 3-point blade adjustable rear sway bar — maximum GD rear stiffness
- Solid spring steel, silver powder coat
- Includes mount bushings and hardware
- 3 adjustment positions
Fitment
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2007 | Subaru | WRX | All |





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