Quote:
Originally Posted by MCarsFan
Must be something to do with the difference between the fronts and rears? Good luck Andy be interested to know how this is sorted
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This^^^
Using two different sizes will completely change the dynamic character of your car. With 345 tire, you are adding a lot more weight to the wheels and rotational mass will affect the performance. Also if I'm not mistaken you are using MPSS on front with 300 AA A tread wear/temp/traction rating while the rear tires are 0BB rating. I know you don't need to have the same brand (and rating) on different axles, but front and rear tires of your setup are night and day