Whiteline 21mm Front Sway Bar Mount Bushing Kit – 2002-2007 Subaru WRX (Sedan & Wagon) / 2004-2007 Subaru STI / 2003-2007 Subaru Impreza (Non-Turbo)

Whiteline 21mm Front Sway Bar Mount Bushing Kit – 2002-2007 Subaru WRX (Sedan & Wagon)

Exact-Fit 21mm Front Mount Bushing for the GD WRX
For 2002-2007 GD WRX configurations running a 21mm front sway bar, this is the exact-fit polyurethane mount bushing. Correct diameter means the bushing seats properly in the bracket, the bar can’t shift axially, and the full stiffness of the bar is available for anti-roll resistance. Knurled inner bore for long-term quiet operation.

DETAILS

• 21mm front sway bar mount bushing for 2002-2007 Subaru WRX (sedan and wagon)
• Whiteline polyurethane compound
• Knurled inner ID retains grease
• Direct-fit to OEM front mount bracket
• Limited Lifetime Warranty

Size Precision in Mount Bushings
Using a bushing that’s even slightly too large allows the bar to rock in the bracket. Too small and it won’t seat correctly at all. Whiteline carries the full size range for the GD WRX front sway bar mount to ensure exact fitment regardless of what bar diameter you’re running.

Polyurethane Performance at the Mount
The mount bushing is as important as any other bushing in the sway bar system. Soft OEM rubber allows bar movement that reduces effective anti-roll stiffness — polyurethane eliminates that compliance.

Sedan and Wagon Fitment
Fits both body styles of the GD WRX. Confirm your front bar is 21mm before ordering.

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 correct replacement for 21mm front mount bushings on the GD WRX. Straightforward. 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

• 21mm front sway bar mount bushing for 2002-2007 Subaru WRX (sedan and wagon)
• Whiteline polyurethane compound
• Knurled inner ID retains grease
• Direct-fit to OEM front mount bracket

Fitment