Costco shows the same “hl” spec as the pirelli’s
Front Tire
Tire Size: HL245/35ZR21/XLSpeed Rating: YLoad Index: 99UTQG: 320 B ARun Flat: NoWarranty: 20k milesSeason: Summer
Rear Tire
Tire Size: HL265/35ZR21/XLSpeed Rating: YLoad Index: 103UTQG: 320 B ARun Flat: NoWarranty: 20k...