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H11 to H9 conversion. DIY with temps
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02-19-2012, 01:45 AM
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0BlueSTi4
Scooby Newbie
Member#:
98955
Join Date:
Oct 2005
Location:
Los Angeles, CA
Vehicle:
2011 WRX Hatch
White
Does anyone know if halogen and HIR bulbs use the same optics? I know the optics and the focal point on HIDs is different but what about HIRs???
Also, how different is the HIR bulb base compared to H9/H11?
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