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Michelin Pilot Sport 4S, 305 /30 R20 103Y XL BSW FO
Choose the Michelin Pilot Sport 4S 305/30R20 103Y XL BSW FO, a max-performance summer tire built for drivers who want precise steering, exceptional dry grip, confident wet braking, and road-to-occasional-track capability. This 305/30R20 Pilot Sport 4S is a popular fitment for select Ford Focus RS, Ford Mustang, Ford Mustang Shelby GT350, Ford Mustang Shelby GT500, Ford GT, Ford Mustang Dark Horse models, plus similar sports cars, performance sedans, premium EVs, and high-output SUVs using 20-inch wheels.
Why choose the Michelin Pilot Sport 4S in 305/30R20?
Built for sports cars, high-horsepower coupes, and staggered performance applications: The 103Y XL service description adds extra load capacity for performance trims, larger wheels, staggered packages, passengers, and high-speed driving.
Road and occasional track performance: Michelin positions the Pilot Sport 4S for approximately 80% road and 20% track use, making it a strong match for spirited street driving and occasional performance events.
Dynamic Response Technology: The tire is engineered for ultra-precise steering response, strong cornering power, and connected handling at high speed.
Multi-Compound Construction: Michelin uses a performance-focused tread design to help deliver dry grip, wet braking, and consistent control where drivers need it most.
Premium performance pedigree: The Pilot Sport 4S is derived from the Pilot Super Sport and is acclaimed by performance manufacturers such as Mercedes-AMG, Ferrari, and Porsche.
Popular vehicle fitments for 305/30R20 Michelin Pilot Sport 4S
This tire size is commonly used on select trims or staggered applications of the Ford Focus RS, Ford Mustang, Ford Mustang Shelby GT350, Ford Mustang Shelby GT500, Ford GT, and Ford Mustang Dark Horse. It is also a strong option for comparable performance vehicles that use the same tire size, load rating, speed rating, wheel diameter, and any applicable OE marking.
Size and rating details
305/30R20: This size is designed for 20-inch wheels and is a practical choice for sports car and staggered performance fitments that need strong dry grip, wet braking, and fast steering response.
103Y XL: The service description and load range identify the tire's load capacity and speed capability for the intended performance application.
BSW: This version uses black sidewall styling for a clean performance look.
Speed capability: This size carries Y-rated speed capability for high-performance summer driving.
FO marking: This SKU includes a Ford marking, useful when matching a factory-style fitment or replacing tires on a vehicle originally equipped with the same designation.
Frequently asked questions
Is the Michelin Pilot Sport 4S 305/30R20 good for daily driving?
Yes. It is a summer performance tire for drivers who want sharp steering, wet and dry grip, and refined road manners, with capability for occasional track use.
What vehicles use the Michelin Pilot Sport 4S 305/30R20?
Popular applications include select Ford Focus RS, Ford Mustang, Ford Mustang Shelby GT350, and Ford Mustang Shelby GT500 models, along with comparable vehicles using the same size, load range, speed rating, wheel diameter, and OE designation when applicable.
Does the Michelin Pilot Sport 4S have a mileage warranty?
Yes. Michelin lists a 30,000-mile treadwear warranty for the Pilot Sport 4S as part of its Michelin Promise Plan.
UNIFORM TIRE QUALITY GRADE (UTQG)Uniform Tire Quality Grade
| SECTION WIDTH Measures the width of the tire from sidewall to sidewall, which is mounted on a wheel and inflated. | 305 / 315 |
| ASPECT RATIO Determines the sidewall height of the tire, based on the width. | 30 / 30 |
| RIM DIAMETER Measures the rim size from top to bottom (in inches). | 20" / 20" |
| OVERALL DIAMETER Measures the tire height from top to bottom when mounted on a wheel and inflated. | 27.2" / 27.5" |
| RIM WIDTH RANGE The approved range of rim widths this tire can be safely mounted on. | 10.5" - 11.5" / 10.5" - 11.5" |
| WEIGHT The weight of the tire measured in pounds (weight of tire only). | 30.51 LBS / 33.05 LBS |
| TREAD DEPTH Measured in /32 of an inch to determine the height of the tread block from top to bottom. | 9/32" / 8/32" |
| LOAD INDEX Determines the weight a tire can carry at maximum air pressure. See load Index chart. | 103 / 104 |
| LOAD RANGE Determines the ply rating of the tire. Should be replaced with the same or higher rating. | XL / XL |
| MAX PSI The max psi is the highest pressure the tire can hold, but should be inflated to your vehicle specifications not exceeding this amount. | 50 PSI / 50 PSI |
| SPEED RATING Designation from laboratory testing to determine the maximum speed the tire can travel. Maintain the same speed rating or higher for replacement. | Up to 186 mph / Up to 186 mph |
| SIDEWALL DESC. The sidewall designation to describe the lettering on the sidewall. | Black Side Wall / Black Side Wall |
| WARRANTY Estimates the life expectancy of the tire, set by the tire manufacturer. | 30000 / 30000 |
| VPN Vendor Product Number | 06890 / 60304 |
| GTIN Global Trade Item Number | 086699068903 / 086699603043 |
Pilot Sport 4S Customer Reviews
Horrible tread life. Great traction and feel.
3rd set of these on Audi S4. Love the quality, only complaint is treat life ( not-unexpected) , but with credit for un-accomplished tread life, I don't complain. No great tire is gonna last 30K of hard driving. Surprisingly good wet traction given profile.
Counting the original set of these tires that were stock on my BMW M-Roadster, I am on my fourth set of these tires. I absolutely love how they handle on curves! I don't get extended miles with these tires, but that is more about how I drive the car than the quality of the tires!