Positive Steering Response system. Helps control and eliminate unwanted body squat and dive under hard cornering and acceleration. Modifies front end alignment and uses a spherical bearing to control wheel wandering. A must have for any WRX with larger than 16" wheels. Gone are the days of the car attempting to wander from rut to rut! Simple installation should not exceed 1 hour for most experienced shadetree mechanics. works on 93-04+ Impreza, RS, TS, WRX and STI and 90+ Legacy |