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Old 04-10-2007, 05:15 AM   #55
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Join Date: May 2006
Location: Los Angeles
Posts: 125
My Ride: 2000 323i
Here is a thread with MUCH discussion of various batteries (consensus seem to be the Duralast 49-DL).

And this DIY has many pictures to walk anyone through replacing the OEM battery with the Duralast 49-DL.

I just installed the 49-DL last week and it fits fine (with a spacer under the battery brace). Newbies, don't forget to attach the vent tube-batteries produce hydrogen gas during driving/charging (VERY explosive).
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