Installation of sizes not authorized by Porsche may impair driving stability and could result in loss of control of the vehicle.
Before mounting new tires check with your authorized Porsche dealer for a current list of approved tires.
Tire Pressures for cold tires (68 °F / 20 °C)
These tire filling pressures apply only to the tire makes and types approved by Porsche. Please see the chapter "TIRES/WHEELS" on page 203. Please see the chapter "TPM TIRE PRESSURE MONITORING" on page 123.