2011 Subaru STI Tire Size
When it comes to performance, the 2011 Subaru STI is a beast on the road. But to keep it performing at its best, you need to pay close attention to the tire size. Choosing the right tires can make a significant difference in handling, grip, and overall driving experience. Let’s break down the stock tire sizes for different trims of the 2011 Subaru STI.
Stock Tire Sizes for the 2011 Subaru STI
The 2011 Subaru STI comes in a couple of trims, primarily the STI and the STI Limited. While both trims share many features, the tire sizes are crucial for performance and compatibility.
Standard Tire Size
For both the standard STI and the STI Limited, the stock tire size is:
| Trim | Tire Size | Wheel Diameter |
|---|---|---|
| STI | 245/40R18 | 18 inches |
| STI Limited | 245/40R18 | 18 inches |
Understanding Tire Size Notation
The tire size notation may look complicated, but it’s straightforward once you break it down:
- 245 – This is the tire width in millimeters. A wider tire generally provides better grip.
- 40 – This is the aspect ratio, which is the height of the sidewall as a percentage of the width. A lower number means a shorter sidewall, which can improve handling.
- R – This indicates that the tire is of radial construction, which is standard for most modern tires.
- 18 – This is the diameter of the wheel in inches, which must match your wheel size.
Performance Considerations
Choosing the right tire size is critical for maintaining the performance characteristics that the STI is known for. Here are some points to consider:
- Handling: The stock 245/40R18 tires are designed for optimal grip and handling. Switching to a different size can adversely affect your car’s handling dynamics.
- Ride Comfort: The aspect ratio impacts ride quality. Lower profile tires (like the 40 in this case) can lead to a stiffer ride, which is great for performance but may sacrifice comfort.
- Speedometer Accuracy: Altering tire sizes can throw off your speedometer readings. Stick to the stock size to ensure your speedometer is accurate.
Aftermarket Tire Options
If you’re considering aftermarket tires, keep the following in mind:
- Stick with the same width and aspect ratio to maintain performance.
- Consider performance tires designed for all-weather conditions if you live in a climate with variable weather.
- Check for tire brands that have a good reputation for performance and longevity.
Choosing the right tire size is not just about aesthetics; it’s about performance, safety, and ensuring your Subaru STI continues to deliver the exhilarating driving experience it’s known for.
Finding the Right Tire Size for Your 2011 Subaru STI
When it comes to maximizing the performance of your 2011 Subaru STI, tire selection is paramount. The stock tire size of 245/40R18 is designed to provide a balance of grip, ride comfort, and handling. However, some owners may be curious about the smallest and largest tire sizes that can be fitted without compromising performance or safety. Let’s dive into the specifics based on owner feedback and forum discussions.
Smallest Tire Size Options
While the stock size is a safe bet, some enthusiasts have experimented with smaller tires. The smallest tire size commonly discussed in forums is 225/40R18. Here’s what you need to know:
Pros of Smaller Tires
- Weight Reduction: Smaller tires can be lighter, which may improve acceleration and handling.
- Cost-Effective: Generally, smaller tires are less expensive, which can be appealing for budget-conscious owners.
- Improved Ride Quality: Some owners report a softer ride with smaller tires, especially on rough roads.
Cons of Smaller Tires
- Reduced Grip: The narrower contact patch can lead to less grip, especially in aggressive driving scenarios.
- Speedometer Inaccuracy: Changing tire sizes can throw off speedometer readings, leading to potential speeding tickets.
- Affected Handling: The car may feel less stable during high-speed cornering.
Largest Tire Size Options
On the flip side, some STI owners have opted for wider tires to enhance performance. The largest tire size often mentioned is 255/40R18. Here’s a breakdown:
Pros of Larger Tires
- Increased Grip: A wider tire provides a larger contact patch, which can enhance grip during cornering and acceleration.
- Improved Stability: Many owners report better stability and confidence when pushing the limits of the vehicle.
- Aggressive Look: Wider tires give the car a more aggressive stance, which many enthusiasts find appealing.
Cons of Larger Tires
- Potential for Rubbing: Depending on the offset of the wheels and suspension setup, larger tires may rub against the fenders.
- Increased Road Noise: Wider tires can lead to more road noise, which may affect ride comfort.
- Higher Cost: Larger tires are generally more expensive, both in terms of purchase price and replacement costs.
Best Tires Based on Owner Feedback
When it comes to selecting the best tires for your 2011 Subaru STI, owner feedback is invaluable. Here are some top recommendations based on discussions from various automotive forums:
- Michelin Pilot Sport 4S: Known for its excellent grip and handling, this tire is a favorite among performance enthusiasts. Owners rave about its wet and dry performance.
- Bridgestone Potenza RE-71R: This tire is often praised for its track performance. It’s a great choice if you’re looking to take your STI to the track.
- Continental ExtremeContact Sport: This tire offers a good balance of performance and comfort, making it suitable for daily driving as well as spirited runs.
- Yokohama ADVAN Neova AD08R: Known for its sticky compound, this tire provides outstanding grip but may wear out quicker than others.
Final Thoughts on Tire Sizing
Choosing the right tire size for your 2011 Subaru STI is crucial for maintaining performance and safety. While the stock size of 245/40R18 is a solid choice, experimenting with smaller or larger sizes can yield different driving experiences. Always consider the pros and cons, and consult with fellow owners or professionals before making any changes.