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

This red-caliper Superlite 6R conversion uses GT slotted 13.06-inch rotors with 48 curved vanes for the supported Subaru front applications. The kit's two-piece rotor construction works with the specified factory hubs and radial mounting components. Included BP-10 pads and front hoses belong to this selected package; it is not a universal conversion for every Impreza-based or Subaru-branded 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: 140-12874-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: 13.06-inch outside diameter × 1.25-inch width; GT Slotted; Spec-37 Iron; Black Electro Coat surface finish.
• Rotor ventilation: 48 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: 17 inches. Compare the complete wheel-clearance diagram with both barrel and spoke dimensions.

Fitment & Compatibility

Start with the individual model, year, trim and rear brake arrangement in the table. Observe the early production-date distinctions before comparing the original front spindle and hub register. Follow the installation drawing for bracket shims and rotor position. A 17-inch rim can still lack spoke clearance, so check the complete profile against the template. Secure the supplied lines clear of tires and suspension and verify pedal travel with the existing rear brakes.

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.