The NC Miata comes with pretty decently sized brakes from the factory, larger than the big brake kits we offer for the earlier car. So we didn't see the advantage in adding rotors the size of a pizza, adding a bunch of expense. Instead, we took a page from the Little Big Brake Kit we developed for the earlier cars and did the same for the third generation. We've tested these brakes on track with a V8 Miata, so we know they'll do the job. Naturally, the calipers were properly selected to work well with the stock master cylinder.
Because the new calipers are aluminum, there is a significant unsprung weight savings: more than 6 lbs per wheel in the front with the four piston option and 1.75 lb per wheel in the rear. The six piston front calipers save more than 4.7 lbs over stock.
Up front, we kept the stock 11.5" rotor and replaced the single piston sliding caliper with the latest aluminum Dynapro design. This caliper is very stiff and gives excellent pedal feel. It also cuts weight compared to the stock one, and gives more even pad pressure. As an added bonus, it's very easy to swap pads if you're taking the car to the track. The standard caliper is a four piston unit, but we also have a six piston option for those who need a massive caliper. This six piston option is the latest 6A model.
In the rear, we used the same exclusive Powerlite rear caliper that we used on the earlier cars. This stiff little aluminum four-piston caliper includes a parking brake mechanism, so you're not sacrificing anything. In order to fit the caliper, we had to change to a slightly larger 11.9" rear rotor. It's originally from a Mazda5, so replacements are easy to source from Flyin' Miata or elsewhere.
The Powerlite rear caliper has been modified to use the factory handbrake cables, even using factory clips so it's a really clean install. The handbrake is not as powerful as the stock setup, so while it can be used to hold the car on a slight grade, it is not suitable for initiating handbrake turns.
The rear brakes fit under NC stock 16” and 17" wheels. In front, for both the 4 and 6 piston caliper options, you will need a 3mm spacer for most stock wheels, though the stock 10-spoke wheels from 2006-08 may require a 5mm spacer - also available from Flyin' Miata. They fit under most aftermarket 17" wheels without problems, including the TRM C3M 17x9 and the Enkei PF01 17x8. Please note that the stainless steel brake lines included with the kit are not the same as the ones used with stock calipers, so you will need the lines.
Templates to check clearance! The four and six piston front calipers share the same clearance.
The kit includes:
Wilwood Dynapro front calipers with BP-10 pads
Stainless steel brake lines
Wilwood Powerlite handbrake rear calipers with BP-10 pads
new rear slotted rotors
Please note that the webstore will only display options that are in stock.
You can reuse your existing front rotors. Our NC front rotors match the new rear ones perfectly. Please note that some small modification of the dust shields and the front upright will be necessary. These modifications will not be a problem if you need to revert to your stock brakes in the future for any reason.
Every piece of this kit is made in the USA with the possible exception of some fasteners.