Bilstein B4 2008 Audi A4 Quattro Trendy Front Twintube Shock Absorber Commercial Restaurant Storage Equipment at Carmina Cox blog. Bilstein B4 OE Replacement dampers are specifically engineered to be the best choice for maintaining the original ride quality of your vehicle, while meeting or exceeding OE standards. These dampers are the ideal choice for the driver looking to restore the original performance and handling of their vehicle, with the added benefit of world famous Bilstein quality. This Part Fits: Year Make Model Submodel 2005 2008 Audi A4 Base 2007 2009 Audi A4 Cabriolet 2005 2008 Audi A4 Quattro Avant 2005 2008 Audi A4 Quattro Base 2007 2009 Audi A4 Quattro Cabriolet 2004 2008 Audi S4 Avant 2004 2008 Audi S4 Base 2004 2009 Audi S4 Cabriolet