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Old 03-22-2015, 08:26 AM   #1
chamilka
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Join Date: Sep 2013
Location: San Diego
Posts: 37
Max tire size on 9x18 rear wheel

Car: 2000 Boxster base
Wheel: 9x18 Turbo twist Porsche Factory Wheels
Rear suspension & camber: Car has stock suspension & camber alignment.

Currently I have 265/35/18 on the rear wheels.
Qn: what is the max tire size I can install in my 9x18 wheel without having to use any spaces, fender rolling, any rubbing and performance issues?.
Tire preference: Michelin Pilot Super Sport tires. Car will be used in both track and street.

Following are some options, let me know what you think:

Michelin Pilot Super Sport 275/35/18
Michelin Pilot Super Sport 285/35/18

Thank you.
Chamilka
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