All EBC rotors are made from OE spec grey cast iron, exactly as used on new car production and as many as we have tools for are BRITISH MADE wholly in our own UK foundry. Currently EVERY SINGLE ROTOR sold in Europe and the UK is BRITISH MADE and a majority of the designs specific to the USA are also BRITISH made.The British foundry is constantly expanding its in house tooled range but EBC like every brake manufacturer ....does need occasionally to buy some rotors in from approved sources to complete ranges in overseas markets. None of our competitors will ever tell you where their rotors come from and we at EBC are as disappointed as the rest of the world that cost pressure means there is not ONE foundry left in the USA to supply such parts, other brake brands when asked about origin will just sidestep the question. When we do buy rotors in, they are specified, sampled, tested for element analysis, grain structure, tensile strength, hardness and optimum ductility and tested 100 piece by piece to be perfect for runout on this in house machine. EBC's GD sport rotors features wide aperture slots for cooling to reduce temperatures preventing brake fade. Dimple drilling avoids stress cracks with Thermic black finish with a sleek look whilst preventing corrosion. DO NOT FIT UPGRADE PADS TO REAR OF VEHICLE UNLESS SAME UPGRADE FITTED TO FRONT, The ?Thermic Black coating? does NOT need to be removed before install. Do NOT use brake cleaner or any other method to remove Thermic Black coating from discs rotors. The Thermic black coating will be removed in the pad swept area by the brake pads with in the first 10 to 20 stops made after installation on the vehicle.The ?Thermic Black coating? is an anti corrosion coating for long resistance against rust. Attempting to remove Thermic Black Coating with brake cleaner or any other method is NOT covered under EBC warranty 2009 thru 2017 AUDI A5 quattro (B8) 2.0 Turbo Fitment: 2009 Audi A5 Quattro Base 2010 Audi A5 Cabriolet 2010 Audi A5 Quattro Base 2010 Audi A5 Quattro Cabriolet 2011 Audi A5 Cabriolet 2011 Audi A5 Quattro Base 2011 Audi A5 Quattro Cabriolet 2012 Audi A5 Cabriolet 2012 Audi A5 Quattro Base 2012 Audi A5 Quattro Cabriolet 2013 Audi A5 Cabriolet 2013 Audi A5 Quattro Base 2013 Audi A5 Quattro Cabriolet 2014 Audi A5 Cabriolet 2014 Audi A5 Quattro Base 2014 Audi A5 Quattro Cabriolet 2015 Audi A5 Quattro Premium 2015 Audi A5 Quattro Premium Plus 2015 Audi A5 Quattro Prestige 2016 Audi A5 Quattro Premium 2016 Audi A5 Quattro Premium Plus 2017 Audi A4 Premium 2017 Audi A4 Premium Plus 2017 Audi A4 Prestige 2017 Audi A4 allroad Premium 2017 Audi A4 allroad Premium Plus 2017 Audi A4 allroad Prestige 2017 Audi A4 Quattro Premium 2017 Audi A4 Quattro Premium Plus 2017 Audi A4 Quattro Prestige 2017 Audi A5 Quattro Sport 2018 Audi A4 Premium 2018 Audi A4 Premium Plus 2018 Audi A4 Prestige 2018 Audi A4 allroad Premium 2018 Audi A4 allroad Premium Plus 2018 Audi A4 allroad Prestige 2018 Audi A4 Quattro Premium 2018 Audi A4 Quattro Premium Plus 2018 Audi A4 Quattro Prestige 2019 Audi A4 Premium 2019 Audi A4 Premium Plus 2019 Audi A4 Prestige 2019 Audi A4 Titanium 2019 Audi A4 allroad Premium 2019 Audi A4 allroad Premium Plus 2019 Audi A4 allroad Prestige 2019 Audi A4 Quattro Premium 2019 Audi A4 Quattro Premium Plus 2019 Audi A4 Quattro Prestige 2020 Audi A4 Premium 2020 Audi A4 Premium Plus 2020 Audi A4 Prestige 2020 Audi A4 allroad Premium 2020 Audi A4 allroad Premium Plus 2020 Audi A4 allroad Prestige 2020 Audi A4 Quattro Premium 2020 Audi A4 Quattro Premium Plus 2020 Audi A4 Quattro Prestige