Project Mu · F1090-25-H16-03
Project Mu Racing H16-03 Brake Pads AP Racing 6-pot RD54 (with tab) 25mm (F1090-25-H16-03)
High-temperature race compound built for the AP Racing RD54 six-piston caliper.
- H16-03 compound tuned for circuit and sprint conditions
- Genuine Project Mu — not a pattern-part substitute
- Correct 25mm thickness for RD54 D54 radial depth
- Fits CP5555, CP9660, CP3894 and CP3558 caliper patterns
- Tab retention keeps the pad located under hard braking
$698
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
Budget pads in a race caliper are a compromise you feel in the pedal and see in your lap times. H16-03 is engineered specifically for high-load, high-temperature circuit use — consistent bite, predictable fade characteristics, and the dimensional accuracy that keeps an AP Racing caliper working as intended. Ordering on indent means you get the genuine article, not whatever is sitting on a shelf.
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 AP Racing 6-pot RD54 (with tab) 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.
WinmaX 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 $494WinmaX 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.
Fits the same caliper
More pads for the AP Racing 6-pot RD54 (with tab).
Pairs well with
Other parts in this build.
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