EBC USR slotted rear rotors for 2003–2010 Audi A8 Quattro 4.2 are precision-machined from high-quality grey iron in the UK and offer the Ultimax USR slotted finish for quieter operation. The slotted profile improves cooling and helps expel dust and debris, which can boost pad contact and reduce fade when used with an appropriately matched high-friction pad set for sustained stopping performance.
EBC 03-10 Audi A8 Quattro 4.2 USR Slotted Rear Rotors