No, actually the mod makes the foglights operate without having the headlights on. The link is here if you don't know what I'm talking about
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http://www.supras.com/06/techcenter/display.php?QID=41 This mod does not specify whether the foglights can be used with the brights or not. I would try it, but I really don't care about having my foglights working without my headlights and want to save myself a few hours.