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Old 03-23-2013, 02:03 PM   #37
e46alfonso
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Join Date: Aug 2011
Location: ma
Posts: 558
My Ride: 330xi MT, mustang gt
225's would turn 10-15 revolutions per mile faster than 215's. If you run higher psi on the 215's it should be closer. The transfer case can probably tolerate this.
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