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The Subaru WRX STI is a performance icon, known for its rally heritage and impressive power. However, many enthusiasts look to upgrade their turbochargers to achieve even greater performance. In this article, we will explore the options for upgrading your WRX STI turbocharger, focusing on the FP Blue and Garrett GTX3076, both of which can help you reach 400+ horsepower.
Understanding Turbo Upgrades
Turbo upgrades can significantly enhance the performance of your WRX STI. The stock turbocharger is designed for reliability and efficiency, but it can limit the engine’s potential. Upgrading to a larger turbocharger can provide the boost needed to unlock additional horsepower and torque.
Choosing the Right Turbocharger
When it comes to turbo upgrades for the WRX STI, two popular choices are the FP Blue and the Garrett GTX3076. Each has its own advantages and characteristics that cater to different driving styles and performance goals.
FP Blue Turbocharger
The FP Blue turbocharger is a popular choice among WRX STI enthusiasts. It offers a great balance between performance and spool time, making it suitable for both street and track use.
- Power Output: Capable of producing 400+ horsepower with supporting mods.
- Spool Time: Quick spool for a responsive driving experience.
- Reliability: Designed for high-performance applications, maintaining durability.
Garrett GTX3076 Turbocharger
The Garrett GTX3076 is another excellent option for those looking to push their WRX STI to new heights. Known for its advanced technology, it provides excellent performance and efficiency.
- Power Output: Can also achieve 400+ horsepower with proper tuning and supporting modifications.
- Efficiency: Improved efficiency over stock, leading to better fuel economy under certain conditions.
- Technology: Features a ball-bearing design for reduced friction and faster spool times.
Supporting Modifications
To maximize the benefits of your turbo upgrade, several supporting modifications are necessary. These upgrades ensure that your engine can handle the increased power and maintain reliability.
- Upgraded Fuel System: High-flow fuel injectors and a fuel pump are essential to provide adequate fuel for increased horsepower.
- Exhaust System: A performance exhaust system helps to reduce back pressure and improve exhaust flow.
- Intercooler Upgrade: A larger intercooler can help keep intake temperatures down, improving performance and reliability.
- Tuning: A proper tune is crucial to optimize the engine’s performance after turbo upgrades.
Installation Process
Installing a new turbocharger on your WRX STI can be a complex process, requiring mechanical knowledge and the right tools. Here’s a general overview of the installation process:
- Preparation: Gather all necessary tools and parts, including gaskets and fluids.
- Remove Stock Turbo: Disconnect the intake and exhaust, and remove the stock turbocharger.
- Install New Turbo: Install the new turbocharger, ensuring all connections are secure.
- Reassemble: Reconnect the intake and exhaust systems, and double-check all connections.
- Tuning: After installation, take your vehicle to a professional tuner for optimal performance adjustments.
Conclusion
Upgrading the turbocharger on your Subaru WRX STI is a fantastic way to enhance its performance and achieve 400+ horsepower. Both the FP Blue and Garrett GTX3076 offer excellent options for enthusiasts looking to take their driving experience to the next level. With the right supporting modifications and proper installation, your WRX STI can become a true powerhouse on the road or track.