tire size 235/45 R18. Both front tires at 7,300 miles suddenly have bulging out of the side wall. One tire bulge the size of a golf ball, the other tire slightly larger in size. No warnings or inflation issues prior to failure. Severe safety risk. Risk of blowout is high. Car not drivable due to risk of blowout. Contacted Pirelli the manufacturer, was told both tires are to be sent to them for inspection by the dealership. Pirelli customer service indicated the issue will likely not be covered under warranty.