I have had a set of these on my svt brake converted sedan for years now.THEY ARE GREAT!!!!I have had ZERO grooves and wear issues with these rotors front and rear. As another user said the svt focus ones are plated with black zinc. There is some surface rust in the wear zone after rains and such till you use them, but nothing serious, and it remains black wherever the rotors are not being contacted by the pads.I use these with a set of red stuff pads, and the braking force is easily controlled, but gets Far stronger than any stock ever could. Even with the slots trimming the pads, there is so little dust that even with MONTHS between washing, all you see on your rims is road dirt.....Plus if you have a issue with quality, you Will get the attention from the manufacturer you could hope for.Rotors and pads are one of the most effective and cheapest ways to upgrade your brakes, and a investment here will safe you money, time, and maybe your...