Quote:
Originally Posted by Da _Grk_Tuner
what are the difference between the EBC USR Series Sport Slotted Brake Rotors and EBC 3GD Series Sport Slotted And Dimpled Brake Rotors
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I've run both rotors on the rear and the only difference I notice was noise. The 3GD's slots are much wider than the USR's slots. As a result, I could hear the 3GDs when the slots passed through the pads. The sound was there regardless of whether I was on brakes or off the brakes. This was a bit annoying. The slots on the USRs are thinner (closer in width to the slots found on the BMW performance rotors). The USRs make zero noise.