Fitment
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Fitment data still being indexed for this product. Ask BuildBot for a fit-check against your vehicle.
The compound
Project Mu NS-EP.
Project Mu’s street pad, sold as NS400 in some markets. Non-steel material with improved fade and wear resistance over a standard replacement pad, and a pedal feel Project Mu tune deliberately for road use. Works from ambient to 400°C.
Operating range0–400°C
Friction µ0.37–0.40
Cross-brand equivalents
Run something similar.
These are the compounds we stock for the Mazda RX8 rear whose published friction and operating temperature come closest to Project Mu NS-EP. They are a starting point for switching brands — not a guarantee of identical feel, because each manufacturer measures friction on their own equipment.
Circo S88
Very close0–650°Cµ 0.38–0.40
Street and entry-level trackday use — the step up from S83.
Matched on published friction and operating temperature.
From $300Circo M192
Very close100–750°Cµ 0.37–0.41
An endurance rear pad developed for GT3 and GT4 machinery.
Matched on published friction and operating temperature.
From $701Circo M155
Close200–850°Cµ 0.37–0.42
An endurance compound built for consistency over long races.
Matched on published friction and operating temperature.
From $701Fits the same caliper
More pads for the Mazda RX8 rear.
Pairs well with
