MichelinPilot Sport 4S325 /30 R21 108Y XL BSW

Outfit your performance vehicle with the Michelin Pilot Sport 4S 325/30R21 108Y XL BSW, 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 325/30R21 Pilot Sport 4S is a popular fitment for select Audi R8, Mercedes-AMG GT, Nissan GT-R, Lamborghini Huracan, Chevrolet Corvette Z06, Porsche 911 Turbo models, plus similar sports cars, performance sedans, premium EVs, and high-output SUVs using 21-inch wheels.

Why choose the Michelin Pilot Sport 4S in 325/30R21?

• Built for wide rear performance fitments, supercars, and staggered track-capable setups: The 108Y 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 325/30R21 Michelin Pilot Sport 4S

This tire size is commonly used on select trims or staggered applications of the Audi R8, Mercedes-AMG GT, Nissan GT-R, Lamborghini Huracan, Chevrolet Corvette Z06, and Porsche 911 Turbo. 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

• 325/30R21: This size is designed for 21-inch wheels and is a practical choice for wide rear performance applications where traction, cornering grip, and high-speed stability are priorities.

• 108Y 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.