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      01-20-2013, 12:20 AM   #5
BmerMeUp
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Drives: Cinderella: 2008 E91 328xi
Join Date: Nov 2012
Location: Ontario

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Quote:
Originally Posted by Char T A View Post
With all wheel drive they need to be same diameter tires. Or extremely close.
True. From other posts, the threshold seems to be 1%.
OP, your chosen setup is ever-so-slightly over 1%.
At or above 1%, an XI is apparently (form other posts - I haven't done it myself...this is 3rd party info but seems reliable) gonna freak all over you with clunking and all manner of nonsense every time you press the gas as it tries to compensate for what it will perceive as tire slippage.

Doesn't help your ginormous tire size dilemma - but before you figure out if they'll even fit in the well, you're going to need to get sizing which matches below 1%, or sell your car for a RWD.