They replace the factory-made rubber with polyurethane
2009 Volkswagen Passat TDI 4WD Sedan/Station Wagon (B6/3C)
Part Number 24-234528 Part Name Shock Absorber UPC 651860733821 Vehicle 2000-2016 Holiday Rambler Vacationer Chassis Code F-53 Boot Included Blue Straight Collapsed Length 15
Bilstein B12 (Pro-Kit) Suspension Kit for the 1985-1992 Volkswagen Golf include a complete set of Bilstein Performance Dampers paired with Eibach (Pro-Kit) springs that provide moderate lowering between 24-40mm (depending on application)
The ISC Suspension Basic V2 Coilover System for the 2014-2016 BMW 535d xDrive AWD (F10) has all the great features of the ISC N1 V2
KONI Special Shock for 1975-1985 Ferrari 308 AWD ohlins-rally-ttx-gravel-coilovers They replace the factory-made rubberKONI Specials are the non adjustable yellow shock for the 1975 1985 Ferrari 308 AWD, delivering a noticeably tighter, more responsive ride than worn factory dampers. Built around KONI's legendary twin tube architecture and intended for stock or factory lowered ride heights, Specials are the right choice when you want KONI quality without the rebound adjuster. Each shock features a hardened chrome rod, multi lip seal pack, and KONI's rebuildable design