E46Fanatics - View Single Post - HID fog light conversion for e46
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Old 05-04-2012, 12:11 PM   #2
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Join Date: Oct 2007
Location: SW Michigan
Posts: 802
My Ride: '99 323i & '00 323iT
If you don't already have HID low beams, you will get much bigger return on your investment/effort by doing that upgrade. After upgrading to HID, I have found very little use for the fog lights for vision (and I live by a very large lake which causes lots of fog).

Fogs require a very low beam with a sharp cut off. This typically means a projector-type housing. The generally rectangular housing in the pre-facelift models are not projectors, so nothing is plug-n-play.

If you want "whiter" light, consider replacing the bulbs with SilverStar Ultras or similar products.
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