The Bilstein Motorsports 1980 Volkswagen Jetta Base Rear 46mm Monotube Shock Absorber is a performance-oriented shock absorber designed for superior handling and improved ride quality. It features a 46mm monotube construction with a digressive valving system that provides a firmer ride when cornering, yet a soft ride when driving on straight roads. The shock absorber is designed for use in all types of motorsports, including drifting, autocross, and rally racing. It is adjustable for rebound and compression, allowing for a customizable ride. It also features a zinc-plated finish for increased corrosion resistance.