motor_head_16

I'm new to this sit and i don't have pictues up yet because i don't have a camera i can access currently. I have a basic daily driver v-6 firebird a.k.a. the firechicken i call it. My main problem i have with it is the front bumper is partially yellow, i see this a lot with the f-body style cars and i know its common. does anyone know how to fix this at home so i dont have to spend a lot of money for a decent paintjob, maco is out of the question as they just paint over. The bumper was like this when i bout it a year or so ago and the kid before me made things worse by using very rough sandpaper. Could someone please give me tips??? will try to post pics within the next few days.