ND Stage 4 Big Brake Kit

A good match to a track-driven turbo Miata, this kit gives you big two-piece front rotors and nice stiff 4-piston Dynapro front calipers. It’s a slightly scaled down version of our Stage 5 kit with a lighter weight. These are the brakes we used on our turbo ND when it ran for 15 hours at Laguna Seca over two days. Road & Track reported “…in my testing at Laguna Seca, these brakes proved measurably superior to the factory Brembo option, particularly in terms of pad-wear consistency.”

Automobile Magazine simply called the brakes “breathtaking”.

Stage 3 addresses the front only, as that’s where the majority of the work is done in the braking system. Stage 4 adds our exclusive four piston rear setup that gives a firmer pedal, sheds more weight and provides maximum performance. 

The pedal feel and balance is excellent due to the stiff Dynapro calipers with properly sized pistons. Slotted two-piece 12.19″ rotors use superior Spec-37 iron. This metal gives very long life as well as dimensional stability under rapid temperature changes. Includes everything needed for installation. Due to these upgrades, this kit is only available from Flyin’ Miata.

This kit includes: 

• Dynapro 4-piston front calipers 
• Spec 37 slotted two-piece 12.19″ front rotors
• Powerlite 4-piston rear calipers 
• BP-10 pads and stainless steel braided steel brake lines for all four corners
• All hardware required for installation – even a hose to bleed the brakes
• Note that it does not include rear rotors

The included BP-10 pads are great for street use and autocross use, you’ll probably want more aggressive pads such as our BP-20 or BP-40 for track use. We’re unable to remove pads from the kit. 

Will they fit your wheels? These brakes (front and rear) will fit under stock 17″ wheels (including the BBS Club wheels) without the need for a wheel spacer. They’ll also fit under our Kōgeki and Tobu wheels with no spacers. We have not yet tested them with factory 16″ wheels. We do recommend you check against your own, however. Use our handy templates to be sure:

Front template

Rear template

Add the bridge bolt kit to make these stiff calipers even stiffer. 

Note that brake fluid isn’t included and is required. Our options are among the best fluid you can get, we recommend two 500 ml bottles to ensure a complete bleed. 

To make the bleeding process as easy as possible, add Speed Bleeders. Note that while the Wilwood calipers have four bleeders per caliper, only the top two (per caliper) need to be replaced with Speed Bleeders. 

You can choose red powder coat or grey hard anodizing as a coating for the calipers. Bear in mind that the hard anodizing is un-dyed, which means that the final color can vary from caliper to caliper, due to differences in the forgings themselves. This difference can be especially noticeable between different caliper types, e.g., the front Dynapro calipers and the rear Powerlite calipers that we use. We can’t accept returns for calipers that have different shades of grey. If it’s important that your calipers match each other perfectly, you’ll need to choose the red calipers.