I have a 98 M3/4. I am currently debating whether to stay with the staggered wheel set up of 7.5x17 up front, 8.5x17 rear or go with 8.5x17 all round (with stock tires). Can I fit these wheels up front without making any modifications? TIA.
Yes. Assuming stock suspension and stock wheels/tires, you can run 8.5" wheels and 245/40R-17 all-around. I never did with my M3 coupe, but I did swap fronts to back and backs to fronts once just to confirm for myself that there's be no rubbing in front.
I'd say the answer depends on whether you (plan to) track your car. If so, I would recommend to go with one size wheel all around. I run 17X8.5 wheels with 235/40 or 245/40 on all four corners. Advantages are that you take some of the understeer out and can freely rotate the tires. For every track event, I simply put the "freshest" tire on the most demanding corner of the car!
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