Project Mu · R433-HC-EP
Project Mu HC-EP Street Brake Pads Mazda RX8 rear (R433-HC-EP)
HC-EP compound. SE3P rear. DB1671 window.
Street-ready stopping power for the RX8, built to handle real heat cycles.
- HC-EP compound balances daily drivability with genuine performance bite
- Direct fitment to Mazda RX8 rear caliper, no modifications needed
- Genuine Project Mu — not a grey-market or reboxed substitute
- In stock in Australia, no waiting on international freight
$194
incl. GST · ships AU-wide● In stockDispatched in 1–2 business days.
Fitment
Will this fit?
Fitment data still being indexed for this product. Ask BuildBot for a fit-check against your vehicle.
Why this part
Project Mu's HC-EP compound sits in a sweet spot that cheaper pads miss — low cold-bite fade for street use, with enough thermal headroom to handle spirited driving without glazing. The friction material is consistent batch to batch, which matters when you're bedding pads properly and expecting repeatable results. For an RX8 that sees more than just commuting, it's the sensible step up.
The compound
Project Mu HC-EP.
Effectively HC+ tuned toward the road, with the same friction range and a 600°C ceiling. Works from ambient, so it behaves like a street pad in traffic while still tolerating trackday use.
Operating range0–600°C
Friction µ0.43–0.58
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 HC-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 M119
Very close50–800°Cµ 0.48–0.51
Circo’s sprint answer: around 0.5 friction from 50°C, so it works before the pads are hot. Rally and circuit.
Matched on published friction and operating temperature.
From $429WinmaX W6.5
Very close50–800°Cµ 0.47–0.50
The standout for sprints and hillclimbs: close to 0.5 friction from a 50°C floor, so it bites on lap one. WinmaX call it their best rally pad.
Fits the same caliper
More pads for the Mazda RX8 rear.
Pairs well with
