That may be, but its not what I expected because of what their website claims:

HPS Ferro-Compound Features:

* Increased stopping power
* High friction/torque hot or cold
* Gentle on rotors
* Extended pad life
* Low dust
* Virtually noise-free

http://hawkperformance.com/performance/hps.php

1, 2, & 6 seem to be true so far, too early to tell on 3 & 4, but I don't agree w/ #5. No big deal though, just a nuisance.

'97 4Runner, '06 F350, '86 4Runner, '05 WR450
http://home.4x4wire.com/erik