Bilstein’s gas-pressure shock absorbers are available in two versions: the mono-tube and the twin-tube system. Mono-tube shocks are ideal replacement components for motor sports and standard sports cars, while twin-tube shocks are often used on most cars, light trucks, SUVs, and vans. Both provide excellent handling and control characteristics for most driving conditions, but if you want additional performance or a more aggressive ride, the mono-tube design is the better option for you. All Bilstein shocks and strut assemblies are designed and engineered in a state-of-the-art facility, and they’re built to meet or exceed OE standards for superior performance, precise fit, and longevity. They also undergo a rigorous testing program to check how balanced the driving characteristics of various vehicles are in different driving situations. When they pass the said test, only then they’re allowed to carry the Bilstein name. Bilstein is so confident about the quality of its shocks and struts that it even backed them with a Limited Lifetime Warranty for utmost customer satisfaction.