EBCT Grooved Rear Discs for Audi A6 Quattro C6/4F 3.0 Supercharged 300BHP 0811
EBC rotors have passed this test and in the case of the Turbo Grooved design, the brakes were shown to run 100 degrees F cooler than non slotted rotors proving their long made claims that EBC Turbo Grooved Discs run COOLER!