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      10-07-2012, 09:53 PM   #36
tp550i
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Drives: 2011 550i Sport
Join Date: Jul 2011
Location: Tampa, Florida

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No we did not disconnect the battery. There is enough inner diameter difference to position these any way you like. I tack welded one side of the tip to the muffler to hold it in place - then using a breaker bar placed into the center of the tip - pried them into position before welding the other side