Project Mu · R433-HC+
Project Mu HC+ Performance Brake Pads Mazda RX8 rear (R433-HC+)
Consistent, fade-resistant braking for the RX8 rear — built for track use.
- HC+ compound holds bite through repeated hard stops
- Direct fitment to RX8 rear caliper, DB1671 / FCP1759 window
- Project Mu's mid-range compound balances street and circuit demands
$257
incl. GST · ships AU-wide● Out of stockCurrently unavailable from our supplier.
AU-wide shipping
Aussie-owned
Track-tested
“The bite is there from the first stop, and it stays there.”
Fitment
Will this fit?
Fitment data still being indexed for this product. Ask BuildBot for a fit-check against your vehicle.
Why this part
Budget pads fade when the rotors get hot — the HC+ compound maintains consistent bite across a wide temperature range, which matters when you're braking hard lap after lap. Project Mu's manufacturing tolerances are tight, so the pad beds evenly and wears predictably. For an RX8 used seriously on track, it's the sensible step up from OEM.
The compound
Project Mu HC+.
The most useful all-rounder Project Mu make for Australian conditions: usable from 0°C and rated to 800°C. That span is unusual — most pads with an 800°C ceiling need serious heat before they work at all. It is why HC+ suits a car that drives to the circuit, races, and drives home, and why it handles sprints where there is no warm-up lap.
Operating range0–800°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+. 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.
Matched on published friction and operating temperature.
From $405WinmaX W7
Very close100–850°Cµ 0.48–0.53
The top of the W-series — professional circuit and rally use, and the highest friction WinmaX publish.
Matched on published friction and operating temperature.
From $433Fits the same caliper
More pads for the Mazda RX8 rear.
Pairs well with
