V8R ND Miata Wilwood Big Brake Kit


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Our BBK’s improve all of the key components of a performance brake system in reducing unsprung and rotational mass, increasing thermal capacity, and improving the pedal feel.

Our kits start with a Wilwood 11.750″ rotor paired (also available in 12.19″) with our CAD-designed and FEA-tested hats that weigh just over 1 lb and are designed with cooling reliefs for great thermal dissipation. Our hats and brackets are CNC to a tolerance of .002″ for true run out and proper alignment. Kits are direct bolt-on, unlike cheaper kits that require hub rings and alignment shims. But we didn’t stop there. Our kits use radial-mount Dynapro radial-mount systems that reduce lateral torsion, or flex, improving pedal feel and virtually eliminating pad taper. The strength of the DynaPro is a combination of process and design. The process of stress-flow forging re-aligns the internal grain structure of the metal to flow within the contour of the caliper body. This produces a part with superior strength compared to machined block billet parts or castings. The FEA-generated body design features a radial transition between the piston bores and caliper bridges. This eliminates machined steps and shoulders in this critical strength area and substantially increases the resistance against deflection and body separation under high load. Structural deflection and volume displacement testing have proven the efficiency of this innovative design. A two-piece caliper is stiffer, has fewer failure points, and a 30% increase in pad volume compared to traditional 4 piston lug mount kits.

What’s included:

  • Ultra-lightweight 11.750″ x .810 rotor and hat combo only 9.3lbs – Floating rotor installation guide
  • Hats and brackets are machined from billet 6061 T6 with a hard anodize finish.
  • Stainless heli-coil inserts in brackets. Includes 10.9 hardware
  • Remove 7.5lbs per corner
  • Wildwood Dynapro radial-mount calipers
  • Braided stainless brake lines
  • Front brake only kit can be upgraded to a full four-wheel kit or Pro Series at any time

Wheel Fitment: We wanted to offer the best performance in every single category, including wheel fitment. Our 11.75″ kits will clear the OEM 17″ wheels and most current aftermarket 17″ – review our Wilwood Dynapro radial mount 12.19″ wheel fitment template and 11.75″ wheel fitment template for details. Proper wheel clearance is the responsibility of the end-user. Requires a 4mm spacer to work with non-BBS factory wheels.

Additional information

Weight 35 lbs
Dimensions 15 × 15 × 8 in

Customer Reviews

Based on 2 reviews

The 11.75" BBK is awesome. We just have one major correction: You advertise that these will fit 17" OEM wheels- they DO NOT! Not even close; the DynaPro calipers are in direct contact with the wheel spokes. Please provide wheel spacers, in our estimation about +20mm are needed for caliper clearance, so customers can indeed, as you are claiming, use their OEM 17" wheels. We were very surprised to discover this AFTER installation. Thankfully, we were able to slap on a set of track wheels to get around. However, track wheels/tires are no good for daily driving duty. Help! Send us the required spacers, please!
Thank you in advance.


For street and trackday use this setup has been phenomenal on my car. No regrets

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