Wilwood Rear GT Rotor Kit with Red Superlite Calipers for FR-S/BRZ/86/GR86 (2013–2024), 12.88-Inch Rotors

GT slotted rear rotors and red four-piston Superlite calipers make up this Wilwood package for the supported coupe configurations. The 12.88-inch rings use separate hats compatible with the original parking-brake mechanism. Included rear flex lines and mounting hardware complete the hydraulic conversion; original hub, shoe and cable condition must still be established for the specific vehicle. Wilwood Engineering was founded by Bill Wood in 1977 and is based in Camarillo, California. The company designs and manufactures disc brake systems and components, including calipers, brake rotors, master cylinders, valves, fittings, and brake lines for motorsport, street-performance, and specialized applications.

Technical Details

• Manufacturer part number: 140-12871-R
• Type: Forged Narrow Superlite 4R Big Brake Rear Brake Kit For OE Parking Brake.
• Calipers: Forged Narrow Superlite 4R; 4-piston; Red Powder Coat.
• Piston bore dimensions: 1.12, 1.12 inches; stainless pistons. Caliper mounting: radial.
• Included pad compound: BP-10.
• Rotors: 12.88-inch outside diameter × 0.81-inch width; GT Slotted; Iron; Black Electro Coat surface finish.
• Rotor ventilation: 48 curved vanes.
• Rotor hats: Parking Brake Hat - Standard; Iron; Black E-Coat.
• Wheel bolt circles: 5 x 3.93; 5 x 4.50 inches.
• Included: paired calipers, pads, rotors and mounting hardware, caliper mounting brackets, rotor hats.
• Application-specific hydraulic flex lines included.
• Conditional wheel minimum: 17 inches. Compare the complete wheel-clearance diagram with both barrel and spoke dimensions.

Fitment & Compatibility

Read the model/year and trim rows carefully, especially for later BRZ and GR86 versions. Compare hub registration and parking-shoe dimensions before assembling the rotor hats. Bracket alignment and caliper centering must follow the instructions, with free rotation checked after parking adjustment. Evaluate the full wheel template rather than relying on a 17-inch label. Ensure hose movement is unrestricted and review hydraulic proportioning against the chosen front brake setup before road testing.

Match the individual year, model, submodel and equipment conditions in the fitment table below.

Wilwood installation documents: Installation instructions.

PMB Performance has over 20 years of brake-system experience. Contact us with the vehicle and installed hardware details for help confirming the complete setup.

Manufacturer warning, brake pads only: WARNING: This product can expose you to chemicals including Arsenic, Cadmium, Chromium (Hexavalent compounds), Lead, Nickel, Cobalt and Antimony Trioxide which are known to the State of California to cause cancer or other reproductive harm. For more information go to www.p65warnings.ca.gov.