These Non-Adjustable Billet Aluminum coil-overs are second to none. The secret is in the precision, race-inspired internal design that provides exceptional sensitivity to small, quick movements (bumps), while still providing firm control over relatively slower strokes (chassis roll). This “velocity-sensitive” valving sets AFCO shocks apart on the track and has been tuned to provide the ride you’re after on your street rod. • High performance handling for every generation. • Shocks offer velocity sensitive deflective disk valving which optimizes control and handling. • Adjustable shocks provide countless tuning options giving you full control over your car’s handling capabilities. • 100% dyno-tuned for accuracy and quality.