The Koni Special Active Shock 05-13 Audi A3 FWD/AWD Front is a high-performance shock absorber designed to provide superior handling and control in both front-wheel drive and all-wheel drive vehicles. The shock is constructed with an adjustable rebound damping system, allowing for a custom driving experience. The shock also features a unique internal floating piston design, which helps to reduce friction and improve shock performance. The Koni Special Active Shock is designed to provide superior performance and improved comfort for Audi A3 FWD/AWD vehicles.