E46Fanatics - View Single Post - Replacing factory Xenons with aftermarket HID's?
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Old 10-21-2012, 03:31 PM   #4
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Join Date: Apr 2008
Location: New Jersey
Posts: 1,044
My Ride: 2001 bmw 325i
If you have stock xenons, the bulb and kit should be D2s. H7 are use in halogen headlights only . xenon and HID are the same thing. In theory yes, you can swap just the ballast but some modification is probably needed.

Last edited by haurelio; 10-21-2012 at 03:35 PM.
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