The Bilstein Drag Series shocks are designed for the most popular drag racing cars today. Bilstein knows too well that speed is the most important thing to any drag racer. That’s why these shocks are built to cut 3/10ths of a second off of your 1/4 mile times. Not only that, these shocks are the only drag shocks in the world that use Bilstein’s monotube technology. So, they provide greater damping force and better handling than any other drag shock options. Bilstein’s Drag Series Shocks are direct bolt-in factory replacements, so these are not only the most effective way to lower your 1/4 or 1/8 mile times but also the simplest and the most convenient one.