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      11-18-2010, 02:00 PM   #5
bobblehead
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Drives: warp speed
Join Date: Aug 2009
Location: Toronto, On

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M3 19" is okay (if you must). But you may want to stick with 245/40/19.

Your proposed 245/45/19 will throw off the speedo by 3.6% difference. Meaning, your speedo will show you are travelling 2.2 mph SLOWER than it really is.
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