Centric Parts brake caliper rebuild kits help restore your disc brake calipers to like new condition. These high quality caliper kits include major replacement parts such as O-rings and seals. Designed to meet OE quality, configuration, and fitment; Includes spring, cup seals and dust boots; Made of high-quality materials for long lasting performance; Sold as an axle set for two wheels 2018 - 2018 Audi A7, 2018 - 2018 Audi A7 Quattro, 2012 - 2018 Audi A8 Quattro, 2017 - 2019 Audi S6, 2017 - 2017 Mercedes-Benz AMG GT, 2016 - 2017 Mercedes-Benz AMG GT S, 2012 - 2017 Mercedes-Benz C63 AMG, 2016 - 2017 Mercedes-Benz C63 AMG S, 2011 - 2014 Mercedes-Benz CLS63 AMG, 2014 - 2017 Mercedes-Benz CLS63 AMG S, 2010 - 2015 Mercedes-Benz E63 AMG, 2014 - 2016 Mercedes-Benz E63 AMG S, 2015 - 2016 Mercedes-Benz S600, 2014 - 2017 Mercedes-Benz S63 AMG, 2016 - 2017 Mercedes-Benz S63L AMG, 2015 - 2017 Mercedes-Benz S65 AMG, 2016 - 2017 Mercedes-Benz S65L AMG, 2013 - 2017 Mercedes-Benz SL63 AMG, 2013 - 2017 Mercedes-Benz SL65 AMG, 2011 - 2015 Mercedes-Benz SLS AMG