The SPL rear knuckle bushings replace the rubber factory knuckle bushing with a low friction PTFE-lined spherical bearing. Replacing the OEM rubber bushing eliminates deflection under heavy acceleration and braking loads that leads to unwanted geometry changes, and prevents binding by allowing the knuckle to smoothly articulate. The reduced deflection also translates to improved driver feedback from the tire and better overall response. We use the largest possible FK bearing, to increase longevity and reduce NVH, mounted in a 6061-T6 aluminum housing precision cut with +/- .001" tolerance to insure proper fitment. Benefits Lightweight: 0.674 lbs (306g) / 0.337 lbs (153g) per Side Improves Throttle and Braking Response Reduced Wheel Hop Maintenance-Free, US Made, PTFE-Lined FK Bearings Materials 6061-T6 Aluminum Bearing Shells Steel PTFE-lined FK Spherical Bearings. SPL Parts Subaru BRZ / 15+ WRX / Toyota 86/GR86 Rear Spherical Knuckle Bushing. SPL FR-S / BRZ / GT86 / GR86 / VA WRX/STI Rear Knuckle Spherical Bushing. Proudly made, engineered, and assembled in the USA.. SPL FR-S / BRZ / GT86 / WRX Rear Knuckle Bushing. Spherical Bushing Kit (Rear Knuckle). Suspension Knuckle Bushing Kit. SPL FRS Rear Knuckle Bushing. Bushing Kit

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov