B6 4600 absorbers are designed as a direct fit upgrade to OE absorbers on stock height light trucks and SUV's. These absorbers feature a monotube design which provides consistent fade free performance. B6 4600 absorbers utilize a for Unique, velocity sensitive, digressive piston which reacts to changing road conditions. All B6 4600 absorbers are tuned for each specific application to ensure optimal performance is achieved. B6 4600 absorbers offer a significant improvement in ride quality, handling, and comfort. With years of experience and time-tested design, the B8 5100 absorbers combine the perfect amount of off road dependability with smooth, on road driving and affordability. Each absorber has been tested and tuned to your specific vehicle.