i agree with everybody above me, dont buy ebay rotors.

from personal experience i would recomend the rotors from SP performance, i have them and asked around before i bought them, and they are good, it has been almost a year since the upgrade and there is no signal of a crack or anything. http://www.sp-performance.com/

i would recomend them to anybody.

p.s. : dont get the nicle plated ones if it rains to much around your area, over here mine are rusting up a bit, but i clean them with an iron tooth brush.... lol