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2004 C4S Tire Replacement

Wheels and Tires

Vehicle Information: Model: 2004 911 C4S; Year: 2004; Body Type: Coupe; Total Mileage: 22400;

I want to move from the Michelin Sport Rib to the PS2 but Michelin does not make the front tire with an N rating.In your answer to a previous question regarding replacing the 225/40/18 front and 295/30/18 rear with the GT3 tire with N2 rating (235/40/18 and 295/30/18), you stated it is OK as they are within the 4% spec.Is this also valid for using the car in the track? I go to a couple of DEs and several AutoX through the year. I just want to make sure there will be no issues on the track.Thanks... Martin

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