2008- 2010 impala front brackts and calipers work good they r dual piston and bolt right up but u also need the rotors to cuz i think the one off the 04+ are to wide the only thing u have to do is bend the brake line a lil bit so its not hitting the bleederi have them on my 05 gtp I defently feel the difference and I got mine from the junk yard and painted them my self