Wilwood Drilled Front Brake Conversion, Mazda MX-5 Miata (2006–2015), Black Superlite Six-Piston Calipers

Black six-piston calipers pair with drilled/slotted 12.88-inch Spec-37 rings in this Wilwood MX-5 Miata front package. Separate aluminum hats retain the compatible original hub arrangement, and the kit includes the front hoses identified in the installation parts list. This selected brake conversion must be checked against the individual model-year and wheel configuration before 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: 140-12907-D
• Type: Forged Narrow Superlite 6R Big Brake Front Brake Kit (Hat).
• Calipers: Forged Narrow Superlite 6R; 6-piston; Black Powder Coat.
• Piston bore dimensions: 1.38, 1.12, 1.12 inches; stainless pistons. Caliper mounting: radial.
• Included pad compound: BP-10.
• Rotors: 12.88-inch outside diameter × 1.10-inch width; SRP Drilled & 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 4.53 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.
• Supplied wheel spacers are required for stock-wheel clearance. Use the DS956 clearance drawing with its specified spacer installed; account for the resulting wheel position.

Fitment & Compatibility

Inspect the original front hub face and mounting points, particularly if the car has previously received different suspension or brake components. Match the exact 2006–2015 application and follow the rotor and bracket assembly procedure. Use the provided shim arrangement to center the calipers, then compare the wheel with the clearance drawing. Check hose movement at full steering lock and suspension travel. Confirm pedal travel and rear-brake balance as part of the completed system setup.

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.