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 FMSI D1648 2014 thru 2016 BMW M5 4.4 Twin Turbo (F10)(Comp Pkg) Fitment: 2012 BMW M6 Base 2013 BMW M5 Base 2013 BMW M6 Base 2014 BMW M5 Base 2014 BMW M6 Base 2014 BMW M6 Gran Coupe Base 2015 BMW M5 Base 2015 BMW M6 Base 2015 BMW M6 Gran Coupe Base 2016 BMW M5 Base 2016 BMW M6 Base 2016 BMW M6 Gran Coupe Base 2017 BMW M6 Base 2017 BMW M6 Gran Coupe Base 2018 BMW M2 Base 2018 BMW M6 Base 2018 BMW M6 Gran Coupe Base 2019 BMW M2 Competition 2019 BMW M6 Gran Coupe Base 2020 BMW M2 Competition 2020 BMW M2 CS 2021 BMW M2 Competition