i do believe the coating your thinking of is called chromex

(used on exhaust and headers...if it is...theres a slight chance i'ld be able to get you a deal on having them coated, but no promises)

99 SE V6\5spd - 156 HP\157 TQ 15.166-90.84 Totaled 02/12/06 99 SVT # 1571 - 175 HP\153 TQ 14.999-91.88 Born 3/24/99 Reborn 3/18/06 Pietenpol Racing Technologies project vehicle 90 Festiva L 5spd, Blue(not for long), 103k