Whiteline Front Roll Center Adjustment Kit – 2013-2021 Scion FR-S / Subaru BRZ / Toyota 86

Whiteline Front Roll Center Adjustment Kit – 2013-2021 Scion FR-S / Subaru BRZ / Toyota 86

Correct Front Roll Center on Lowered ZN6/ZC6
The Whiteline KCA435 Front Roll Center Adjustment Kit for the 2013-2021 FR-S, BRZ, and Toyota 86 uses offset lower ball joint spacers to raise the front roll center back toward its designed height when the car has been lowered. On the MacPherson strut ZN6/ZC6 platform, lowering drops the roll center disproportionately — the KCA435 corrects this, reducing body roll and improving handling balance.

DETAILS

• Raises front roll center on lowered ZN6/ZC6 applications
• Reduces body roll caused by roll center drop after lowering
• Reduces front bump steer on lowered MacPherson strut applications
• Fitment: 2013-2021 Scion FR-S, Subaru BRZ, Toyota 86
• Direct bolt-in — no chassis modification required

Roll Center Drop on the ZN6/ZC6
The ZN6/ZC6’s MacPherson strut front suspension suffers the same roll center drop as other MacPherson strut platforms when lowered. The roll center drops disproportionately, causing more body roll per unit of cornering force — the opposite of what lowering for handling is intended to achieve. The KCA435 corrects this.

Bump Steer Reduction
Alongside roll center correction, the KCA435 simultaneously reduces front bump steer on lowered ZN6/ZC6 examples — restoring neutral wheel tracking through suspension travel.

Essential for Lowered ZN6/ZC6
The roll center kit is one of the most important geometry corrections for any lowered ZN6/ZC6. Without it, the handling benefits of lowering are partially negated by the roll center drop.

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 highest-impact geometry corrections available for lowered ZN6/ZC6 models. Get an alignment after installation — the offset geometry changes the static alignment readings. The improvement in steering feel and braking stability is noticeable immediately. Combine with a matching rear anti-lift or geometry correction kit for the most complete front end precision package.

What’s in the Box

• Raises front roll center on lowered ZN6/ZC6 applications
• Reduces body roll caused by roll center drop after lowering
• Reduces front bump steer on lowered MacPherson strut applications

Fitment