Bilstein B6 Performance Dampers Are A Performance Upgrade To Oe Dampers Designed To Be Paired With The Oe Factory Spring. These Dampers Offer Application Specific Valve Settings With A Monotube Design To Bring Out The Best Handling Performance Of A Vehicle. Each Damper Is Rigorously Tested For Quality That Meets Or Exceeds Oe Standards. B6 Performance Dampers Will Provide Improved Safety And Handling Performance With The Added Benefit Of World-Famous Bilstein Quality.