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SKU: 21039 | UPC: 086699210395
Michelin Pilot Sport 4 S 305/25ZR21 (98Y) XL Rear Tire for 2022-2025 Porsche 911 GT3 GT3 RS Touring
The Michelin Pilot Sport 4 S 305/25ZR21 (98Y) XL is an ultra-high performance summer tire built for rear positions on 2022-2025 Porsche 911 GT3 GT3 RS and Touring models. It provides responsive steering quick dry braking and strong wet traction for track days and spirited driving. This tire uses advanced compounds and construction tested by Porsche as OEM equipment.
Key Features
- BlackTrack Construction: Rigid center rib shortens dry braking by 2 meters versus prior generation for confident stops
- Dynamic Response Technology: Reinforces tread blocks for 9 percent more precise steering feel during cornering
- Bi-Compound Technology: Hard center compound boosts tread life by 10 percent soft shoulders increase lateral grip
- Asymmetric Tread Pattern: Wide grooves channel water for wet road control and stability at high speeds
- Premium Rim Flange Protector: Shields alloy wheels from curb damage during aggressive driving
Product Notes
- Treadwear 300 UTQG rating traction AA temperature A for performance longevity
- Load index 98 supports 1653 pounds per tire at 50 psi max inflation
- Oversize tire ships freight or ground with protective wrapping
Installation Notes
- Professional installation recommended.
- Torque wheel lug nuts to vehicle specifications 118 ft-lbs for Porsche 911
- Balance tires and perform four-wheel alignment after mounting
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2022-2025 | Porsche | 911 | GT3 |
| 2022-2025 | Porsche | 911 | GT3 Touring Package |
| 2023-2025 | Porsche | 911 | GT3 RS |
| 2021-2024 | McLaren | 765LT | Rear Position |
Why Choose Michelin?
- Selected as original equipment by Porsche BMW Mercedes-AMG for supercars
- Proven in GT racing with wins at 24 Hours of Le Mans
- Engineered with motorsport data for real-world street and track performance
Frequently Asked Questions
-
Q: Will this tire fit the rear of a 2023 Porsche 911 GT3?
A: Yes OEM size for 2022-2025 Porsche 911 GT3 GT3 RS Touring rear positions pairs with 255/35ZR21 fronts -
Q: What compound and speed rating does it have?
A: Ultra-high performance summer compound ZR speed rating Y rated to 186 mph with XL extra load construction -
Q: What is the tire warranty?
A: Michelin Promise Limited Warranty covers workmanship and materials up to 6 years plus 30-day satisfaction trial
Shipping & Handling
- Method: UPS Freight or FedEx Ground for oversize tires
- Availability: In stock - ships same or next business day
- Packaging: Single tire in protective sleeve box dimensions 32 x 32 x 12 inches
- Weight: 27.6 lbs
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