I have 235/45/17 infront and 255/40/17 in rear
The rears should only be 245 but I already had the tires. They rub slightly over bumps but I'm going to get teh fenders rolled and it shouldn't be a problem.
In conclusion the fronts max is 235/40/17 and the rears max 245/45/17
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Mods: M50 intake manifold, BFP CAI, Fan delete, CDV delete, Clears all around, M contours, Clutch stop, Debaffled exhaust, CF BMW emblems