Positive Steering Response System

The Perrin PSP-SUS-417 Positive Steering Response System (P.S.R.S.) is engineered to enhance the steering feel and cornering accuracy of your vehicle. By replacing the factory-compliant front control arm bushings with a more rigid design, this system significantly reduces unwanted flex. The OEM bushings are designed for NVH reduction, but their softness allows for substantial wheel movement (up to .500 inches) under braking and acceleration. This flex leads to drastic toe changes, resulting in steering wander and an altered tire contact patch. The P.S.R.S. Zero features a centered bushing, meaning no alignment is required after installation. This focus on precision allows for faster turn-in by optimizing the steering axis and providing a larger contact patch. Constructed from 6061 billet aluminum with red anodizing for durability and aesthetics, and utilizing stainless steel spacers, this system is built to last. It comes with all necessary hardware, instructions, and a 5-year warranty against defects in material and workmanship. This system is specifically designed for the 2013+ Subaru BRZ and 2013+ Scion FR-S models, directly addressing their specific suspension characteristics to provide a more connected and responsive driving experience. The upgrade offers a more stable ride, improved turn-in performance, and more accurate alignment, making it an essential modification for performance-oriented drivers.