[treedodger]

Brake Pad Manufacturer (F/R): Power Stop (PowerStop)
Caliper (F/R): Stock
Rotor Size (F/R - IE OEM or specify): OEM
Compound (F/R): Track Day (Trackday) PSA-1124/PSA-1539 and PST-1124/PST-1539
Tires: GT Radial SX2 (TW260)

Feedback:

Please note there are two types of Power Stop Trackday pads. I recommend the PSA-1124/PSA-1539 (Track Day SPEC). The PST-1124/PST-1539 (Track Day or Trackday) is a lower temp pad, but since it's about the same price as the PSA, get the PSA. I was able to melt the PST front pads at Laguna Seca with SX2 and stock power.

I've used these for about 25 trackdays.

Overall they work pretty well; very economical at ~$80/axle from rockauto.com. Cold bite and modulation is very close to OEM. Hot bite is better than OEM, but not as good as the better race pads. I have not been able to melt them on Northern California tracks, including one >100F day at Buttonwillow. The stock rotor is developing heat cracks, but only a tiny edge of the outer pads are starting to crumble (<1mm). On the street there is almost no squealing (even after the tranfer layer has worn off). I'm seeing about 1mm of front pad wear per track day (1.5 hours). I'm running without front dust sheilds and with GT3 control arm ducts. Rotor wear is minimal.

PSA Scores:
Dusting (1=high-10=low): 6
Cold bite (1=low-10=high): 6
Hot bite (1=low-10=high): 7
Modulation (1=low-10=high): 8
Noise (1=extremely loud-10=quiet): 9 (even when not bedded in)
Pad Lifespan (1=short-10=long): 4 (last about 6-8 trackdays)
Does the brake dust with this combination damage the wheels/paint if not cleaned immediately? No. No problems w/ black painted wheels.
Brake ducts: Sort of on the front; using GT3 ducts attached to lower suspension arms with dust shields removed.

PST Scores:
Dusting (1=high-10=low): 6
Cold bite (1=low-10=high): 5
Hot bite (1=low-10=high): 6
Modulation (1=low-10=high): 8
Noise (1=extremely loud-10=quiet): 9 (even when not bedded in)
Pad Lifespan (1=short-10=long): 4 (last about 6-8 trackdays)
Does the brake dust with this combination damage the wheels/paint if not cleaned immediately? No. No problems w/ black painted wheels.
Brake ducts: Sort of on the front; using GT3 ducts attached to lower suspension arms with dust shields removed.
NOTE: I melted the PST at Laguna Seca w/ SX2's.