Bilstein B12 Suspension Kit Audi Volkswagen 46 183323 Bilstein B12 (Pro Kit) Suspension Kit Audi B9 A4 Bilstein B12 (Pro Kit) Suspension Kit Audi A4 Quattro Front and Rear Bilstein B12 Audi A4 Base Front and Rear Suspension Kit 46 188465 Bilstein B12 Audi A4 Base Front and Rear Suspension Kit 46 188588. The Bilstein B12 (Pro Kit) is the result of two companies atop their industries collaborating to present the ultimate solution in suspension for the passenger car market. The shock absorber experts at Bilstein and the spring professionals at Eibach used their 120 years of combined experience and knowledge to spawn Performance2. The B12 system consists of four high performance Bilstein dampers, four hi tech industrial Eibach lowering springs and together you have the best handling, most comfortable direct fit suspension system available today. This Part Fits: Year Make Model Submodel 2009 2014 Audi A4 Base 2015 2016 Audi A4 Premium 2015 2016 Audi A4 Premium Plus 2015 Audi A4 Prestige 2009 Audi A4 Quattro Avant 2009 2014 Audi A4 Quattro Base 2015 2016 Audi A4 Quattro Premium 2015 2016 Audi A4 Quattro Premium Plus 2015 Audi A4 Quattro Prestige