Project Mu · R433-H16-03
Project Mu Racing H16-03 Brake Pads Mazda RX8 rear (R433-H16-03)
Race-grade rear braking for the RX8, built to Project Mu's motorsport standard.
- H16-03 compound tuned for sustained high-temperature performance
- Direct fit to RX8 rear caliper — DB1671 / FCP1759 window
- Ordered per race program, not sitting in a generic warehouse
$470
incl. GST · ships AU-wide● Out of stockCurrently unavailable from our supplier.
AU-wide shipping
Aussie-owned
Track-tested
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 Racing H16-03 compound is developed on circuit, not reverse-engineered from a street pad. Where budget alternatives fade under repeated hard stops, the H16-03 maintains consistent bite and pedal feel through a full session. For an RX8 used seriously on track, the compound choice at the rear matters — this is the one that holds up.
The compound
Project Mu H16-03.
A carbon-ceramic race compound built for GT, TCR, WRC, historic racing and time attack. Its character is high initial bite with a clean release, which lets you brake hard without locking a wheel, and Project Mu specify it for both front and rear axles. The trade-off is pad life: it wears faster than H20 or H21, so it costs more per race weekend.
Operating range200–650°C
Friction µ0.45–0.60
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 H16-03. 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
