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I am relieved to see others noticing the same performance degradation. I put numerous stops as per the bedding process and the next 100+ miles. While I do not like the dust stopping distance is much more important. I did a test before and after. I stopped in 133 feet with the worn Porsche pads prior to the change to Hawks. With the Hawks I the best I could do was 157 feet. And it seems to be mostly in the initial bite. The Porsche pads seem to be significantly more aggressive at initial application. Per Hawk's recommendation I went with the HPS. They told me that the Ceramics are the same as the HPS with added silica which results in the same dust just lighter in color. However, the HPS would still be their preferred choice for the street. I did not change the brake fluid since the dealership did it as part of their maintenance 800 miles prior to putting the hawks on. Thanks for all the advice. I am ordering a set of factory pads today.
I was wondering if anyone has used the Halk HPS Pads? I have a 2008 Cayenne S with 30K miles. Due to brake dust I decided to replace the pads. I surfaced the rotors, replaced the pads (front and rear), bed the pads exactly as Hawk recommends. After cooling overnight I test drove and the brakes were definately not as responsive as with the factory pads. I contacted Hawk and they suggested I put some miles on it and have the fluid changed. I had Porsche change/bleed the system. After 122 miles they still do not have the same responsiveness. They seem sluggish. Any experiences or advise would be appreciated!