Tomioka Racing Roll Center Adjuster - 2013-2020 Subaru BRZ / Scion FR-S / Toyota 86

Tomioka Racing Roll Center Adjuster - 2013-2020 Subaru BRZ / Scion FR-S / Toyota 86

Lowering the Subaru BRZ, Scion FR-S, or Toyota 86 pushes the front roll center below the car's center of gravity -- which can actually increase body roll and reduce front grip despite the lower ride height.

Roll Center Correction for Lowered BRZ, FR-S, and 86

Lowering the Subaru BRZ, Scion FR-S, or Toyota 86 pushes the front roll center below the car's center of gravity -- which can actually increase body roll and reduce front grip despite the lower ride height. The Tomioka Racing Roll Center Adjuster is an extended front lower ball joint kit that raises the roll center back toward its intended position, restoring the front tire loading balance the platform was designed to deliver.

Direct Replacement at Factory Lower Control Arm

The Tomioka Racing adjuster replaces the factory lower ball joint with an extended unit that bolts directly to the factory lower control arm. No cutting, welding, or chassis modification required. Correct alignment after installation is essential to realize the geometry benefit.

Key Features

• 2 x Roll Centers
• 2 x Pins
• Usestock ball joints(no roll center correction, but safe with your BBK).
• Addbump-steer tie rodsif you're lowered 30 mm+ for better steering.
• Consideraftermarket LCAsthat have more clearance around big brake kits.
• Check with your BBK manufacturer for alternate hats or clearance options.

Fitment Notes

• Fits 2013-2016 Scion FR S
• Fits 2013-2020 Subaru BRZ
• Fits 2017-2020 Toyota 86

Straight From Subispeed

For lowered BRZ/FR-S/86 builds that feel looser or less planted than expected through corners, geometry correction is often the answer. The Tomioka Roll Center Adjuster is a clean, direct-fit solution for the ZN6/ZC6 platform. Combine with a corner-weighted alignment for the best results.

What's Included

• Tomioka Racing Roll Center Adjuster extended ball joint kit (set)
• All mounting hardware

About Tomioka Racing

Tomioka Racing has been engineering bolt-on performance parts for Subaru platforms since 2007, with a design philosophy built around factory-style installation and real-world reliability. Every Tomioka Racing product is engineered to work with the factory setup -- clean installation, correct fitment, and durability under sustained use. For WRX, STI, BRZ, and the 86 platform, Tomioka Racing offers one of the most focused and thoroughly developed bolt-on catalogs available at this price point.