I picked up a set of the Morimoto's a while back, and one of them is noticeably different in color after being on for a while (or it was, way back when I was actually driving my car...).
I'm not sure if it's a problem with the bulb, ballast or elsewhere...
Zetec....is that like Vtec or something???
Zetec Crew #103/ATX Faction #27 (retired)