Wilwood Front 14-Inch Drilled-Rotor Conversion with Red Superlite Calipers, Impreza/Legacy/Outback/Forester/WRX/WRX STI (1999–2021)

Red six-piston Superlite calipers and drilled/slotted 14-inch rotor rings define this Wilwood front assembly for the supported Subaru applications. Separate hats connect the Spec-37 friction rings to the compatible original hubs. The supplied hoses, pads and brackets are selected as a package, so the caliper finish does not alter the mounting or wheel-clearance requirements for the individual 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: 140-12875-DR
• 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; SRP Drilled & 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

Establish the exact model/year and original brake equipment, including rear disc or drum distinctions and early build-date notes. Check hub seating and bracket locations before tightening the rotor and caliper hardware. Large nominal wheels still require comparison of spoke shape and inner barrel with the manufacturer's template. Ensure the lines remain free through steering and suspension travel. Inspect the retained rear brakes and verify the complete hydraulic arrangement rather than selecting solely by front rotor size.

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.