Wilwood Front GT Slotted 14-Inch Brake Kit, Red Calipers, Impreza/Legacy/Outback/Forester/WRX/WRX STI (1999–2021)

This GT slotted Wilwood front kit uses red Superlite 6R calipers and 14-inch rotor rings for the Subaru fitments individually listed below. The rotor and aluminum-hat assembly works with the compatible original hub, while the radial brackets locate the six-piston calipers. BP-10 pads and front flex lines are included, with the completed installation dependent on production year, trim and brake-system configuration. 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: 140-12875-R
• Type: Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hat).
• Calipers: Forged Narrow Superlite 6R; 6-piston; Red Powder Coat.
• Piston bore dimensions: 1.62, 1.12, 1.12 inches; stainless pistons. Caliper mounting: radial.
• Included pad compound: BP-10.
• Rotors: 14.00-inch outside diameter × 1.25-inch width; GT Slotted; Spec-37 Iron; Black Electro Coat surface finish.
• Rotor ventilation: 72 curved vanes.
• Rotor hats: Big Brake Hat - Flared Bell; Aluminum; 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: 18 inches. Compare the complete wheel-clearance diagram with both barrel and spoke dimensions.

Fitment & Compatibility

Confirm the applicable rear-brake equipment and any production split before comparing the original front mounting arrangement. The overall year span covers different models for different periods. Check rotor registration and follow the bracket-shimming procedure to establish caliper alignment. Use the actual wheel's spoke and barrel profile with the clearance template. Route the supplied hoses without twisting or tension, then review pedal travel and brake balance with the retained master cylinder and rear hardware.

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.