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      06-06-2008, 12:33 PM   #4
M3Post Supporting Vendor

Drives: 740i
Join Date: Mar 2008
Location: South Bend, IN

iTrader: (0)

On the M3, the rear tire should be slightly taller than the front, so do not use 275/30R19 with a 245/35R19. Ideally you would go 255/35R19 front with 275/35R19 if you wanted to go wider.

275/35 rear with 245/35 front would *probably* be ok, but the understeer would increase, as noted above. The change in width is what changes the handling balance.

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