Nissan 240SX S13 Engine Torque Damper Kit Fitment: 1989-1994 Nissan 240sx (KA24DE/SR20DET DOHC engines only!) Include a 13" Engine Damper Shock 100% Brand New, Made Of Grade A Steel (Not Rusty Scrap Metal). This Damper Will Help Cure Wheel Hop, Increase On The Line Acceleration And Vehicle Stability. Can Be Use For Track To Drag. Less Vibration On Transmission To The Driver Compare To Polyurethane Motor Mpunts PROFESSIONAL INSTALLATION IS HIGHLY RECOMMENDED. NO INSTALLATION GUIDE IS AVAILABLE.