Whiteline Front Sway Bar 22mm – 2008-2014 Subaru STI / 2011-2014 WRX / 2009-2013 Forester XT

Whiteline Front Sway Bar 22mm – 2008-2014 Subaru STI / 2011-2014 WRX / 2009-2013 Forester

Fixed 22mm Front Bar for GR/GV STI, WRX, and Forester
The Whiteline BSF39 is the fixed-rate 22mm front sway bar for the 2008-2014 STI, 2011-2014 WRX, and 2009-2013 Forester. Where the adjustable BSF39Z offers three positions, the BSF39 is a non-adjustable unit for builds where the setting is fixed. Same high-quality spring steel and polyurethane mount bushings as the adjustable version — a clean, direct option when adjustability isn’t needed.

DETAILS

• 22mm fixed-rate front sway bar
• Solid spring steel, silver powder coat
• Includes mount bushings and hardware
• Fits 2008-2014 Subaru STI, 2011-2014 WRX, 2009-2013 Forester (GR/GV chassis)
• Non-adjustable alternative to the BSF39Z

When Fixed Rate Is the Right Choice
If you’ve done the setup work and know exactly where you want the bar stiffness, a fixed-rate bar is simpler and fully capable. The BSF39 at 22mm delivers the same anti-roll stiffness as the BSF39Z in its standard position — no performance compromise for choosing non-adjustable.

Broad GR/GV Coverage
One bar spec covers three GR/GV variants: the STI, the WRX (2011+), and the Forester. All share compatible front suspension mount geometry for this front bar application. Practical coverage for owners who work on multiple GR/GV platforms.

Pair With a Rear Bar
Front-only bar upgrades shift the roll stiffness distribution toward the front. Pair with Whiteline’s BSR49 series rear bars for the GR/GV platform to maintain balanced handling improvement.

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 clean, no-fuss front bar upgrade for the GR/GV WRX, STI, and Forester. If you know you want 22mm and don’t need adjustment, this is the correct choice. 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

• 22mm fixed-rate front sway bar
• Solid spring steel, silver powder coat
• Includes mount bushings and hardware
• Non-adjustable alternative to the BSF39Z

Fitment