BLUESTUFF automotive brake pads are made of an extremely durable compound for extensive rally applications. The coefficient of friction oscillates at the level of 0.4 to a temperature of 900 degrees C, the mixture in Bluestuff blocks has 2 to 3 times longer wear time compared to the Yellowstuff series and, similarly to the Yellow and Red series, does not damage the brake discs. As the only one from the ECB's offer, they require prior warming up so that they can brake effectively. TECHNICAL DATA Block dimensions A: 209.8 x 100.6 x 19.2mm ECE R90 approval: ❌ Designed for the racetrack: ✅ Axle application: Front APPLICATION Make Model Engine Value Power (KM) Yearbook BMW X5 M (F85) 4.4 TWIN TURBO 575 2015- 2018 BMW X6 M (F86) 4.4 TWIN TURBO 575 2015-2019