Roush Source for Saleen/alcon brakes

I've got the brembos and they work great. I'm hoping to really test them in October when our car club goes to Talladega for a day at the road course. I've been told to get porterfield pads because they dust less and brake better. I think mine came with hawk pads but I could be wrong. I've been to porterfields website but does anyone know the exact part number I need for the pads?