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Old 01-29-2013, 03:13 AM   #15
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Join Date: Mar 2006
Location: Southern California
Posts: 23,224
My Ride: M54B30
Originally Posted by TerraPhantm View Post
OEM on the E39 and a ton of other makes/models. Main reason I went with them is because they're waterproof (so I can mount them externally without worrying about moisture)

I am a little suspicious since the failure has been on the driver side only so far... but I never actually installed *new* ballasts, mostly because they're really expensive.
Are you mounting them externally for cooling purposes? Where exactly will they be mounted?
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