Ideal for vehicles that are on rough terrain often, the Bilstein OE Replacement Coil Springs are designed to improve ride quality by absorbing the vibrations and bumps from the road. They feature innovative technical designs, such as minibloc shapes, pigtail ends, and central force design. And they are made from high-quality chrome silicon steel or chrome vanadium for maximum strength and a high level of break resistance. Bilstein has always believed that uncompromising quality is key to its success, so it uses only the latest technology and processes in manufacturing its products. Once the coil springs are formed, they go through a stringent hot setting process to effectively prevent height losses. Their surface is also carefully compressed and coated with a special finish for superior corrosion resistance and long service life. Truly, the Bilstein B3 OE Replacement Coil Springs are a class of their own, so make them your first choice now!