Table of Contents
The Subaru WRX STI is known for its rally-inspired performance and handling capabilities. To enhance the driving experience further, many enthusiasts turn to performance handling packages that include coilovers, sway bars, and precise alignment settings. This article delves into these components, their benefits, and how they contribute to the overall performance of the WRX STI.
Coilovers
Coilovers are an essential upgrade for those looking to improve their Subaru WRX STI’s handling characteristics. They replace the factory suspension system, providing adjustable ride height and damping settings.
- Adjustable Ride Height: Coilovers allow drivers to lower or raise their vehicle to achieve the desired stance and center of gravity.
- Improved Handling: With adjustable damping, coilovers can be tuned for better cornering stability and responsiveness.
- Increased Performance: Upgraded coilovers can enhance grip and reduce body roll during aggressive driving.
Popular Coilover Options
Several coilover brands cater specifically to the Subaru WRX STI, each offering unique features and performance benefits. Here are some popular options:
- BC Racing: Known for their affordability and performance, BC Racing coilovers offer a good balance of comfort and handling.
- Tein: Tein coilovers are highly adjustable and known for their durability, making them a favorite among enthusiasts.
- Koni: Koni coilovers provide excellent damping control and are often praised for their performance on both the street and track.
Sway Bars
Sway bars, or anti-roll bars, are crucial for reducing body roll during cornering. Upgrading to performance sway bars can significantly enhance the handling of the WRX STI.
- Reduced Body Roll: Performance sway bars stiffen the suspension, minimizing body roll and improving cornering stability.
- Better Weight Distribution: By reducing body roll, sway bars help maintain optimal tire contact with the road, enhancing grip.
- Enhanced Steering Response: A stiffer sway bar can lead to quicker steering response and improved overall handling.
Choosing the Right Sway Bars
When selecting sway bars for the Subaru WRX STI, consider the following factors:
- Thickness: Thicker sway bars generally provide more stiffness, which can be beneficial for track use.
- Material: Look for sway bars made from high-quality materials like chromoly steel for durability.
- Adjustability: Adjustable sway bars allow you to fine-tune the stiffness according to your driving style and conditions.
Alignment Settings
Proper alignment settings are vital for maximizing the performance of your Subaru WRX STI after installing coilovers and sway bars. Alignment affects tire wear, handling, and overall stability.
- Camber: Negative camber can improve cornering grip but may lead to uneven tire wear if too aggressive.
- Toe: Adjusting toe settings can enhance straight-line stability and cornering response.
- Caster: Increasing caster angle can improve steering feel and stability at higher speeds.
Recommended Alignment Specs
For optimal performance, consider the following alignment specifications for your WRX STI:
- Front Camber: -1.0 to -2.0 degrees
- Rear Camber: -1.5 to -2.5 degrees
- Front Toe: 0.0 to 1/16” toe-in
- Rear Toe: 0.0 to 1/16” toe-out
- Front Caster: 6.0 to 7.0 degrees
These specifications can vary based on personal driving preferences and whether the vehicle is primarily used for street driving or track days. Always consult with a professional alignment technician for the best results.
Conclusion
Upgrading the Subaru WRX STI with performance handling packages, including coilovers, sway bars, and proper alignment settings, can significantly enhance the driving experience. These modifications not only improve handling and stability but also allow drivers to tailor their vehicle’s performance to their specific needs. Whether on the street or the track, investing in these upgrades can lead to a more enjoyable and dynamic driving experience.