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      05-01-2012, 06:47 PM   #4
IanS100
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Drives: 520d F10 LCI M Sport
Join Date: Nov 2011
Location: Southport UK

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I've previously had a regular xenon conversion but often wondered what exactly is a "bi" xenon, does that mean main & dip are xenon? & is it one bulb or two?

Cheers