Whiteline Front Sway Bar 27mm Adjustable – 2007-2013 Mazdaspeed3

Whiteline Front Sway Bar 27mm Adjustable – 2007-2013 Mazdaspeed3

Serious Front Roll Control for the Mazdaspeed3
The Whiteline BMF57Z is a 27mm 3-point adjustable front sway bar for the 2007-2013 Mazdaspeed3. The Mazdaspeed3 is a turbocharged front-wheel-drive hot hatch with significant torque steer and a tendency to understeer when pushed. A 27mm front bar provides aggressive front roll stiffness that reduces body roll, improves front tire loading consistency, and helps the platform perform closer to its actual capability.

DETAILS

• 27mm 3-point blade adjustable front sway bar
• Solid spring steel, silver powder coat
• Includes mount bushings and hardware
• 3 adjustment positions
• Fitment: 2007-2013 Mazdaspeed3 (BK/BL chassis)
• Direct bolt-on installation

Mazdaspeed3 Front End Dynamics
The Mazdaspeed3’s turbocharged engine delivers significant power to the front wheels — a combination that creates torque steer under hard acceleration and understeer when cornering. A stiffer front bar reduces body roll, which keeps the front tires at better contact angles during cornering, improving front grip and reducing the understeer tendency. The 27mm BMF57Z provides the stiffest option for maximum front roll control.

Three-Position Adjustment for FWD Tuning
On a front-wheel-drive platform, front bar stiffness adjustments have a direct effect on understeer/oversteer balance. Stiffer front relative to rear increases understeer; softer front relative to rear reduces it. The three positions let you tune this balance for your setup and circuit.

Rear Bar Complement
Whiteline produces a rear bar for the Mazdaspeed3 (BMR88Z, BMR82Z). Pairing front and rear bars on a FWD platform allows proper balance tuning — stiffening only the front produces a different result than matched front and rear upgrades.

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

One of the most effective single handling upgrades for the Mazdaspeed3. 27mm front stiffness makes a significant difference on a platform that benefits directly from reduced body roll. 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

• 27mm 3-point blade adjustable front sway bar
• Solid spring steel, silver powder coat
• Includes mount bushings and hardware
• 3 adjustment positions

Fitment