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      01-05-2010, 03:14 PM   #15
akak1997
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Drives: BMW 135 @ 135mph
Join Date: Aug 2008
Location: Los Angeles

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2008 135i  [0.00]
hmm... I just finish reading the detail section for 135 installation kit. It seems like it is what Mr. 5 did with his install, where he send in his stock diff, have them separate the welded ring gear then send it back to him for install. So there might be a long down time involve.

Besides, HPA is doing this also, ~$2000 for the completely assembled Diff + 800 core charge. So there's no down time. Unless Wavetrac is offering a better pricing, I might just go with HPA.
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