The EBC GD7710 is a rear rotor from EBC's GD Sport line, built as a dimpled and slotted design for the 2015-2018 Subaru Legacy and Outback. The manufacturer says its wide aperture slots draw cooling air across the pad-to-rotor interface, which matters because pad contact temperatures can climb very high during heavy braking and cause fade. Compared with a stock rotor, this suits drivers who brake hard repeatedly on mountain roads, while towing, or on spirited back-road runs. The slots also clear dirt, mud, water and dust from the braking area and help keep pad wear even. Each rotor is machined in the UK from R90-approved blanks, balanced and runout inspected before release, and finished with a silver corrosion-resistant coating.
For the best results, the manufacturer recommends pairing these rotors with a matched set of higher-friction EBC pads such as Bluestuff, Orangestuff or Yellowstuff, rather than expecting a slotted rotor to improve braking on its own. Enthusiasts searching for this upgrade often look for 2015-2018 Subaru Outback rear dimpled slotted rotors, EBC GD7710 rear brake upgrade, dimple drilled rotors for Subaru Legacy fade resistance, or GD Sport rotors with Yellowstuff pads. Before ordering, confirm fitment against your VIN, and follow the manufacturer's torque specifications when reassembling the rear caliper.
The manufacturer states that GD series rotors are 100% machined in the U.K. from R90-approved blanks, with the majority cast in the EU.
The manufacturer recommends a matched set of brakes instead of expecting the slotted rotor alone to improve braking, and suggests Bluestuff, Orangestuff or Yellowstuff pads for higher friction.