Bluestuff NDX is a high friction sport and race material that can be used for aggressive street driving and certain types of track use. The material has had much success on the track with quality aftermarket calipers (Multi piston systems with better release and cooling and larger rotors) and limited success with street based calipers where pad size and caliper drag can challenge any brake material. The biggest advantage of EBC Bluestuff NDX is their bite from cold and progressive brake feel and the ability to bring a car to a complete stop. This has led to the ECE R90 brake safety regulation approval of R90 which is now completed and certificates are being obtained (during July 2011). There are certain older street based caliper systems where even the new Bluestuff will have trouble handling the caliper and slider drag inherent in the systems but this scenario is exactly the same for our competitors. There is NO material that will be PERFECT on the track in all older street based caliper systems. The Bluestuff NDX is a high friction sport and race material that can be used for aggressive street driving and track applications where longevity and performance is a must. Superb for sports cars; imports; and muscle cars alike. 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 2012 and up MERCEDES-BENZ SL65 AMG 6.0 Twin Turbo (Cast Iron Rotors) Fitment: 1994 Mercedes-Benz SL320 Base 1995 Mercedes-Benz SL320 Base 2005 Mercedes-Benz SL65 AMG Base 2006 Mercedes-Benz SL65 AMG Base 2007 Mercedes-Benz SL65 AMG Base 2012 Mercedes-Benz SL63 AMG Base 2013 Mercedes-Benz SL63 AMG Base 2013 Mercedes-Benz SL65 AMG Base 2014 Mercedes-Benz S63 AMG Base 2014 Mercedes-Benz SL63 AMG Base 2014 Mercedes-Benz SL65 AMG Base 2015 Mercedes-Benz C63 AMG S Base 2015 Mercedes-Benz S600 Base 2015 Mercedes-Benz S63 AMG Base 2015 Mercedes-Benz S65 AMG Base 2015 Mercedes-Benz SL63 AMG Base 2015 Mercedes-Benz SL65 AMG Base 2016 Mercedes-Benz C63 AMG Base 2016 Mercedes-Benz C63 AMG S Base 2016 Mercedes-Benz S600 Base 2016 Mercedes-Benz S63 AMG Base 2016 Mercedes-Benz S65 AMG Base 2016 Mercedes-Benz SL63 AMG Base 2016 Mercedes-Benz SL65 AMG Base 2017 Mercedes-Benz C63 AMG Base 2017 Mercedes-Benz C63 AMG S Base 2017 Mercedes-Benz S600 Base 2017 Mercedes-Benz S63 AMG Base 2017 Mercedes-Benz S65 AMG Base 2017 Mercedes-Benz SL63 AMG Base 2017 Mercedes-Benz SL65 AMG Base 2018 Mercedes-Benz C63 AMG Base 2018 Mercedes-Benz C63 AMG S Base 2018 Mercedes-Benz E63 AMG S 4Matic 2018 Mercedes-Benz S63 AMG 4Matic 2018 Mercedes-Benz S65 AMG Base 2018 Mercedes-Benz SL63 AMG Base 2018 Mercedes-Benz SL65 AMG Base 2019 Mercedes-Benz AMG GT 53 Base 2019 Mercedes-Benz AMG GT 63 Base 2019 Mercedes-Benz AMG GT 63 S Base 2019 Mercedes-Benz E63 AMG S 4Matic 2019 Mercedes-Benz S63 AMG 4Matic 2019 Mercedes-Benz S65 AMG Base 2019 Mercedes-Benz SL63 AMG Base 2020 Mercedes-Benz AMG GT 53 Base 2020 Mercedes-Benz AMG GT 63 Base 2020 Mercedes-Benz AMG GT 63 S Base 2020 Mercedes-Benz E63 AMG S 4Matic 2020 Mercedes-Benz S63 AMG 4Matic 2020 Mercedes-Benz S65 AMG Base 2021 Mercedes-Benz AMG GT 53 Base 2021 Mercedes-Benz AMG GT 63 Base 2021 Mercedes-Benz AMG GT 63 S Base 2021 Mercedes-Benz E63 AMG S 4Matic 2022 Mercedes-Benz AMG GT 53 Base