Hey go pick yourself up the following:

600 grit sand paper
800 grit sand paper
1000 grit sand paper
1500 grit sand paper
2000 grit sand paper
3M plastic polish
rags

and your "stockies" will have renewed life saving you $280 (unless of course they are litterly cracked or busted up)

I just did mine they look brand new. Plus I believe there is a how-to on this site as well.

-Mike 98 Contour SVT Toreador Red #49 of 6535 Built on 3/25/97 WR Headers, Borla Cat-Back, Torsen T2 LSD, K&N Short Ram, S-AFC and Focus Shift Tower 85 Camaro 1969 358ci, 97 TA interior, 91 Z28 GrdEfx and Aero Wing 255rwhp