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The VA WRX is a beloved performance vehicle known for its impressive handling and turbocharged power. For enthusiasts looking to push their cars beyond the factory specifications, achieving over 350 horsepower is a common goal. Stage 2 upgrades offer a balanced approach to enhancing performance without compromising reliability. This article outlines the top power modifications that can help you reach that 350+ hp mark.
Understanding Stage 2 Upgrades
Stage 2 upgrades typically involve a series of modifications that enhance the engine’s performance while still allowing it to run on pump gas. These upgrades generally require a proper tune to maximize the potential of each modification. Below are the key components that contribute to achieving over 350 horsepower.
Essential Modifications for VA WRX
- High-Performance Turbocharger
- Upgraded Intercooler
- Performance Exhaust System
- ECU Tune
- High-Flow Fuel Injectors
- Cold Air Intake
High-Performance Turbocharger
Upgrading to a high-performance turbocharger is one of the most effective ways to increase horsepower. A larger turbo can provide more airflow, resulting in higher boost levels. Popular choices for the VA WRX include:
- Garrett GTX2860R
- Blouch 20G XT
- FP Blue Turbo
Upgraded Intercooler
With increased boost comes the need for better cooling. An upgraded intercooler helps reduce intake temperatures, ensuring that the engine runs efficiently and safely. Look for options that offer:
- Improved airflow
- Larger core size
- Durable construction
Performance Exhaust System
A performance exhaust system not only enhances the sound of your WRX but also improves exhaust flow. This reduction in back pressure allows the turbo to spool more quickly, resulting in better performance. Key features to consider include:
- 3-inch diameter piping
- High-flow catalytic converter
- Quality muffler design
ECU Tune
An ECU tune is essential for maximizing the benefits of all your upgrades. A professional tune adjusts the fuel maps, ignition timing, and boost levels to ensure optimal performance. Consider these options:
- Accessport by COBB Tuning
- EcuTek tuning solutions
- Open-source tuning options
High-Flow Fuel Injectors
To support the increased power levels, high-flow fuel injectors are necessary. These injectors ensure that the engine receives the proper amount of fuel, preventing lean conditions. Look for injectors that provide:
- Increased flow rate
- Compatibility with your tuning solution
- Reliability for high-performance applications
Cold Air Intake
A cold air intake system can improve engine response and efficiency by allowing cooler, denser air to enter the engine. When selecting a cold air intake, consider:
- High-flow air filter
- Heat shield to reduce intake temperatures
- Easy installation
Conclusion
Achieving over 350 horsepower in your VA WRX with Stage 2 upgrades is an attainable goal with the right modifications. By investing in a high-performance turbocharger, upgraded intercooler, performance exhaust system, ECU tune, high-flow fuel injectors, and a cold air intake, you can enjoy a thrilling driving experience that takes full advantage of your vehicle’s potential. Always remember to consult with a professional to ensure that your modifications are installed correctly and tuned for optimal performance.