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The Subaru WRX is a beloved vehicle among car enthusiasts, known for its performance and tuning potential. One popular modification for the WRX is upgrading to a Stage 2 setup, which often includes a more efficient intercooler. In this article, we will explore the potential horsepower gains from installing a Mishimoto 27-inch top mount intercooler on a Stage 2 WRX.
Understanding Stage 2 Modifications
Stage 2 modifications typically involve a combination of engine tuning and performance upgrades. For the WRX, this often includes:
- Upgraded turbocharger
- High-flow fuel injectors
- Performance exhaust system
- ECU tuning
These modifications are designed to increase the engine’s efficiency and power output. However, the intercooler plays a crucial role in this process by maintaining optimal air temperatures, which can significantly impact performance.
The Role of the Intercooler
The intercooler is responsible for cooling the air that enters the engine after it has been compressed by the turbocharger. Cooler air is denser, allowing for more oxygen to enter the combustion chamber, which translates to more power. A high-performance intercooler, like the Mishimoto 27-inch top mount intercooler, can lower intake temperatures significantly compared to the stock unit.
Mishimoto 27-inch Top Mount Intercooler Features
The Mishimoto intercooler is designed specifically for the Subaru WRX and offers several features that enhance performance:
- Increased core size for better cooling efficiency
- Lightweight aluminum construction
- Direct fitment with no modifications required
- Improved airflow design
These features contribute to lower intake temperatures, which can lead to improved horsepower and torque figures.
Expected Horsepower Gains
When upgrading to a Mishimoto 27-inch top mount intercooler as part of a Stage 2 setup, enthusiasts can expect to see significant horsepower gains. While the exact figures can vary based on other modifications and tuning, many users report:
- Horsepower increases of 15-30 whp (wheel horsepower)
- Torque increases of 20-40 lb-ft
These gains are achieved primarily due to the intercooler’s ability to maintain lower intake temperatures, which allows for more aggressive tuning and improved engine performance.
Installation Process
Installing the Mishimoto intercooler is a straightforward process for those familiar with automotive upgrades. Here’s a brief overview of the steps involved:
- Remove the stock intercooler and associated piping.
- Install the Mishimoto intercooler in the factory location.
- Connect the piping and ensure all connections are secure.
- Reinstall any components that were removed during the process.
- Perform a test drive to check for leaks and proper operation.
It’s recommended to have a professional tune the vehicle after installation to maximize performance and ensure reliability.
Conclusion
Upgrading to a Mishimoto 27-inch top mount intercooler as part of a Stage 2 WRX setup can yield substantial horsepower gains. With improved cooling efficiency and the ability to support higher boost levels, this intercooler is a valuable addition for those looking to enhance their WRX’s performance. Whether you are a seasoned tuner or a newcomer to the WRX community, investing in quality components like the Mishimoto intercooler will help you achieve your performance goals.