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Old 06-22-2010, 11:45 AM   #4
e46techtuner
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Join Date: Jun 2005
Location: USA
Posts: 716
My Ride: 2000 328i
For autocross my tire pressure only rises about 2 psi in front and 1 psi in rear, which I usually don't mess with. We only get about 3-5 runs at the events I go to.
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