The Bilstein B4 OE Replacement (DampTronic) dampers are precision-engineered replacements for the electronically adjustable dampers found in many European brand vehicles. Designed to maintain the original ride quality and handling characteristics, these dampers exceed or meet OE standards. Bilstein B4 OE Replacement (DampTronic) dampers are the perfect choice for drivers seeking to restore their vehicle's original performance while enjoying the renowned quality and reliability of Bilstein products.