I have them on my '05 Limited Roadster and they work great. No squealing, virtually no dust, and braking performance doesn't seem to be compromised at all. In fact, during my last track day I scared a guy in a Porsche 911 when braking from 125MPH to 35MPH for a 90 degree corner. He later said he was stunned at how quickly my car could stop and that he just couldn't stop as quick, which explained why he went off straight instead of negotiating the corner.