Its about 7 bucks a can and i got it at autozone, im sure you can pick it up at any
auto parts store that has spray paint

I forgot to add
make sure you read the can cause it has to be baked once yourdone painting.
either in a oven at 250 degrees or you can do it on the bike by starting it and
letting it idle for 10 mins then let it cool for 20, then run for 20 and cool for 20
then ride "normal" for 30 mins and it will be baked on.