What did the factory use?

i just paint it all black with good epoxy primer and eastwood chassi black. a guy i know reffered me to his friend that would give me great pricing as he was his friend and just starting the powder coating business. he gave me a price of 80.00-110.00 per wheel. i thought that was totally unreasonable. maybe im cheap but i will stick to painting my parts myself, at least with the prices here in nj.