How much does the cat-back exhaust system cost to install on a 95 camaro?

If I were to redo a paint job on it too, right now it is aqua, should change it to silver, black, or red?
It's a v-6

not to sure how much it would cost to get a catback exhaust installed i just hope its a V8 and not a V6 camaro though lol, but the color should be black, red attracts attention from cops and silver don't look as good on a camaro than black does