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      12-04-2007, 12:16 AM   #291
Private First Class
Drives: 535xi
Join Date: Nov 2007
Location: toronto.

Posts: 140
iTrader: (1)

does the ball bearing mod, if reversed, leave any evidence that there has been something in the tube? i ask since my car is leased and i don't want bmw to say i caused some problems (knock on wood) by doing this, hence, voiding any part of my warranty.
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