Wilwood Front Dynapro 6 Brake Kit for Selected Mazda 3 (2004–2013), Black Calipers and GT-Slotted 12.88-Inch Rotors with Hoses

Black Dynapro 6 calipers work with two-piece 12.88-inch GT-slotted rotors in this Mazda 3 front conversion. The aluminum hats retain the specified factory hub mounting, and the included flexlines adapt the new calipers to the chassis plumbing without adding replacement hubs. Wilwood Engineering's product range serves motorsport, street-performance and specialized brake applications. Founded in 1977 by Bill Wood and based in Camarillo, California, the company designs and manufactures disc brake systems, calipers, rotors, master cylinders, valves, fittings and brake lines. Individual components must be selected to match the complete system rather than by appearance alone.

Technical Details

• Rotor: 12.88 in; 327.15 mm outside diameter; 1.10 in; 27.94 mm thickness. Material: Spec-37 Iron. Construction: Vented. Friction-face style: GT Slotted.
• Rotor-hat material: Aluminum. Hat offset: 0.470 inches; this hat dimension is separate from axle offset.
• Rotor surface finish: Black Electro Coat.

• Calipers: 6 stainless pistons per caliper; lug mounting; forged aluminium bodies. Color: Black. Finish: Black Powder Coat. Inlet thread: 1/8-27 NPT.
• Caliper family: Dynapro 6. Brake-pad compound: BP-10.

• Manufacturer: Wilwood; manufacturer part number: 140-13581. Supplied quantity: Sold as a kit.
• Application category: Front Brake Kits - Street Performance. Axle/spindle category: Front Kits. Brake function: Disc.
• Separate wheel hubs included: No. Retain only the hub arrangement specified for this kit.
• Mounting hardware included: Yes. Spindles included: No. Master cylinder included: No. Brake booster included: No.
• Flexible brake lines included: Yes; matched line kit 220-13667, 20.00 inches nominal length.

• Wheel interface: 5 X 4.5 in; 5 X 114.3 mm. Rotor/hat wheel-stud clearance: 0.580 in; 14.73 mm.
• Nominal minimum wheel diameter: 17 in; 431.8 mm. Verify the full wheel-clearance drawing; diameter alone does not establish barrel or spoke clearance.

Fitment & Compatibility

Check the exact Mazda 3 trim, engine and production years below, including the separate Mazdaspeed and later 2.5-litre entries. Wilwood specifies compatibility with the matched factory master cylinder and ABS system. Use DS1047 to confirm the 17-inch wheel envelope and hose routing.

Use the fitment table below for the complete model, year, submodel and brake-option conditions; every listed condition must match the installed vehicle.

Manufacturer Documents

• Wilwood product specifications and wheel-clearance drawing
• Installation instructions

Ask PMB Performance for assistance if the installed hardware differs from the documented application. With over 20 years of parts and fitment experience, we can help identify the measurements needed to check the conversion.