Wilwood Front 14-Inch Drilled-Rotor Kit with BP-20 Pads and Black AERO6 Calipers for Impreza/Legacy/Outback/Forester/WRX/WRX STI (1999–2021)

This Wilwood AERO6 front conversion pairs black six-piston calipers with drilled/slotted 14-inch rotors and BP-20 pads on the listed Subaru applications. The separate-hat rotor construction and radial brackets must match the specified factory disc-spindle arrangement. Included front lines complete the selected hydraulic connections, while the vehicle's hub register and original equipment remain decisive for proper installation. 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: 140-12876-D
• Type: AERO6 Big Brake Front Brake Kit.
• Calipers: AERO6; 6-piston; Black Powder Coat.
• Piston bore dimensions: 1.62, 1.12, 1.12 inches; stainless pistons. Caliper mounting: radial.
• Included pad compound: BP-20.
• 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

Check the exact vehicle row for model year, rear brake type and early production splits. A matching Subaru model name does not establish the front hub and spindle dimensions on a modified car. Follow the rotor assembly and caliper-positioning instructions, then compare the actual wheel with the full clearance drawing. Check both spoke depth and barrel profile. Secure the hoses through full steering travel and assess the BP-20 friction choice alongside the rear brake setup and operating conditions.

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.