Originally Posted by 4sevens.com
Yeah they are but they last a long long time - as do most race compounds. They'll outlast street pads many times over and I dare say twice some of the street/track pads. I love how carbontech pads feel but they get eaten up so fast!
Another alternative race pad is the cobalt XR1. I'd say it's a tad bit better than the PFC01 - but also pricey.
If you take the track pads off after your track days and not run them on the street they will last a long time.
I've got 5 weekends off of my current set of PF01s on my 330...expect to get 2 or 3 more. I've been pretty diligent about changing pads right before and after the track. The squealing provides extra motivation as well.
Before I was lazy so the pads didn't last as long. And I'm pretty sure the ST rotors run significantly cooler that what I was using before.