Yup just like GFXjamie said, just clean them really good and make sure all dust and oil and such is off. Tape off whatever you don't want sprayed and away you go. I put four coats on and i think it looks great. Depending on how you paint it, clear may be needed but its not mandatory. I didn't use any clear and Ive never had a problem.
Current: 2006 Focus ZX4 ST. Tuxedo Black and Sterling Grey
Mods: 7" double din Alpine touch screen audio unit, K&N typhoon CAI, Steeda short shifter, custom two tone paint, rear wing delete, Angel eye headlight kit with 6000K HID upgrade, tinted windows, tail lights, and marker lights, Eibach Sportline springs on Tokico shocks and struts, Eibach front and rear sway bar kit. 17x7 Ikon Black Zen Wheels. Massive front and rear upper strut bar.
Mods: 7" double din Alpine touch screen audio unit, K&N typhoon CAI, Steeda short shifter, custom two tone paint, rear wing delete, Angel eye headlight kit with 6000K HID upgrade, tinted windows, tail lights, and marker lights, Eibach Sportline springs on Tokico shocks and struts, Eibach front and rear sway bar kit. 17x7 Ikon Black Zen Wheels. Massive front and rear upper strut bar.