Bilstein B6 Heavy Duty Shocks are designed with daily-driving, heavy hauling and off-roading in mind. The B6 HD Shocks and Struts enhance vehicle dynamic and give outstanding traction and stability. The B6 Shocks are available with both monotube or twin-tube design and feature a unique gas-pressure construction capable of withstanding extreme loads, while maintaining cabin comfort according to OE quality standards. Whether for the street, the highway or off the road, Bilstein's B6 Heavy Duty Shocks and Struts are your best choice. Best of all, your B6 HD Shocks and Struts are backed by a Limited Lifetime Warranty.