The SPL Rear Lower Control Armw (RLCA) significantly improves rear mechanical grip, provides greater stability under hard braking and acceleration, and precise feedback on what the rear is doing on turn-in and on limit. The use of PTFE-lined, F1-fit FK USA spherical bushings eliminates OEM rubber bushing deflection and bind, allowing the suspension to freely articulate without undampened rubber spring forces, while also preventing camber loss, bumpsteer, and vague feedback that occur due to bushing deflection.The kit enables adjustable track width, camber, and rear roll center for a deeper customization of the rear suspension geometry to better suit your driving preferences and adapt to changes in tracks, aero loading, tires, and more.