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ORIGINAL EQUIPMENT SIZES FOR:

2011 Cadillac STS \ 4 Dr Sedan Base V6 (255/45R18 99 W 8x18)

YOUR VEHICLE'S OEM TIRE SIZE

Based on our records, this should be your vehicle's current tire size.

OE Wheel Diameter: 18" 255/45R18 (99W)
SELECT YOUR CURRENT TIRE SIZE

Different size for rear tires?