Two-Piece Rotors (Open Slot) BRZ/ FR-S - Black Ops Auto Works
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Two-Piece Rotors (Open Slot) BRZ/ FR-S

Racing Brake
1 Units In Stock - Ships Next Business Day
$ 605.99
$ 605.99


Subaru BRZ  &  Scion FR-S
Rotor Material: Racing Formula Alloyed Gray Iron & Heat treated
Machining: Open Slot
Surface: EDP Coating w/cross cut grinding on friction surface

NOTE: Retaining and jack screw holes might have been eliminated to prevent the screws from stripping and breaking, causing tremendous effort to remove and replace the rotors. Our two-piece rotor hats are made of aluminum which is easier for installation and removal. See detail view here.

Click here to learn how RB two-piece rotors are built differently than the competition.

Weight Comparison (each)
OE One-piece 16.9 lbs.
RB One-piece
(w/reinforced rib)
14.8 lbs.
RB Two-piece 12.0 lbs.
Weight Savings
4.9 lbs. vs. OE One Piece

Replacement Components

Rotor Ring: D203-02-381


  1. Alloyed iron formula adds strength and heat resistance. Heat treating further improves rotor performance for a more uniform and stabilized microstructure.


  1. The cooling vanes are of a convergent nozzle design, which increases airflow and turbulence and makes discs cooler. (Illustration #1)

  2. The center-mount flanges for hat mounting to the rotor ring have several benefits. (Illustration #2)
  • It allows the ring to be used on either side of the vehicle simply by mounting the hat on either side of the ring (unidirectional).
  • The stress load transferred from the ring to the hat is balanced.
  • Air inlets are widely open to both inboard and outboard sides of the rotor. More air suctions and even temperature on both sides of the disc surface.
  • Heat transfer from the disc surfaces to the hat is even and minimized by increasing the flange length and the airflow around the flanges.
  • Mounting flanges are on both friction surfaces ultimately provides excellent heat balance.
  • Exclusive full floating design with 10.9 grade alloyed hardware. Hardware is DACRO coated and crimp locking. DACRO is highly corrosion resistant and provides a film for easier movement between the hat and rotor ring as disc expands and contracts and the crimp design provides positive engagement without rattling or torque loss at temperature.

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