997 Turbo / GT2 2006–2012 Turbo discussion on the 997 model Porsche 911 Twin Turbo.
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Tire ratio issues with 997.2

Old Jun 12, 2014 | 03:59 PM
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Tire ratio issues with 997.2

I read about the tire ratio requirements of the 997.1 or run the risk of differential damage.

Does the 997.2 have the same issue?

Are 245/30/20 Michelin PSS w/ 295/30/20 Michelin PSS ok? Seems about 2.5% different than factory if my math is correct.

The rear wheels are 11" wide so I'm not sure how a 325/25 wheel would fit/look.
 
Old Jun 13, 2014 | 06:22 PM
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I guess no issue with the 997.2?
 
Old Jun 14, 2014 | 10:02 AM
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I haven't heard otherwise so I'd assume the same issue as the 997.1.

On your tire sizes, circumferences look to technically work, but overall look and handling may seem odd (wider in front, narrower/taller in rear). If you are intent on keeping the 11" rears then I think 235/305 is the way to go....but then a lowering is needed for the look to be better. 20" rears at 12" wide (or even 11.5) really solves a lot since you can run the 325/25.
 
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