The EBC GD Sport (3GD Series) front rotor for the 2013-2020 Lexus GS350 3.5 RWD is a vented, one-piece iron disc with wide aperture slots and dimpled pad-contact pockets. It is designed as a direct replacement for the factory front rotor, so it bolts in without modification. The slots pull air under the pad and rotor interface to limit heat buildup and fade during repeated hard stops. Its dimples are meant to let pad gases escape without fully drilled holes, which is the usual crack risk on heavy-use discs. For a GS350 that sees mountain descents, track days, or towing, this is a more durable and heat-tolerant upgrade than a plain rotor at a similar price.
Fitment covers the GS350 RWD in Base and F Sport trims from 2013 through 2020, and the pad reference is FMSI D1118, so match your pads to that spec. Some sources assign F Sport RWD fitment to a neighboring EBC part number, so confirm the exact part against your VIN before ordering. DIY-wise, this is a standard front brake rotor swap: lift the car, remove the caliper and bracket, unbolt the old disc, clean the hub face, and mount the new one. The manufacturer ties most vibration complaints after a rotor change to hub runout or misalignment at installation, so check runout and torque to specification. Search terms: GS350 RWD slotted dimpled rotors, GD7635 front brake rotor, Lexus GS350 track brake upgrade, FMSI D1118 rotor.
It is listed for the 2013-2020 GS350 RWD in both Base and F Sport trims. Sources differ on which EBC part number covers F Sport RWD, so confirm the part number against your VIN with the manufacturer before ordering.
Owners on user forums cite a factory nominal front thickness of 30.0 mm and a minimum of 27.0 mm for the GS350. Measure with a micrometer and compare against your service manual before reinstalling.
No. The manufacturer describes the wide slots as drawing cool air under the pad and rotor interface, and the dimpled design is intended to let pads degas without through-drilling.
This is a bolt-on front rotor swap that a home mechanic with a jack, jack stands, a socket set, and a torque wrench can complete. Remove the caliper and bracket, unbolt the old rotor, and clean the hub mounting face thoroughly before fitting the new disc. Check runout with a dial indicator, since the manufacturer links vibration complaints to hub runout and misalignment at installation. Torque the hardware to the factory specification and bed in the pads according to the pad maker's procedure.
