The GKTECH FR-S/ GT86/ GR86/ BRZ traction mod arm combo is a great way to gain more traction under throttle. Our combo includes an easy to bolt on double sheer relocation bracket in addition to an adjustable traction arm to fine tune your alignment. Rear traction rods allow adjustment of the rear multi-link suspension. They can be adjusted to eliminate bump steer and alter other rear suspension traction settings to improve suspension response. The lengths on these arms are fully adjustable and with the right adjustments, you can change the position and pitch of which the suspension rotates on, along with the amount of "anti-squat" of the rear. - feature high quality 5/8" Teflon lined pillow ball rod ends which eliminate the flex found in factory rubber bushing offering a more direct and predictable feel. - manufactured from chromoly 28mm OD (3mm wall) tube - CAD designed, FEA tested, mandrel bent and TIG welded. - Relocation bracket is mounted in double shear for increased ridgidity - Improves bump steer characteristics - Reduces anti-squat geometry Vehicle Compatibility: - Scion FR-S - Toyota ZN6 GT86 - Toyota ZN8 GR86 - Subaru ZC6 BRZ - Subaru ZD8 BRZ