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The 2015 Subaru WRX is a beloved vehicle among car enthusiasts, known for its impressive performance and tuning potential. One modification that many WRX owners consider is the installation of a catch can. This article will explore how a catch can can help maximize your WRX’s power output by approximately 10 horsepower.
What is a Catch Can?
A catch can is a device that helps to prevent oil vapors from entering the intake manifold. It captures oil and contaminants that would otherwise be recirculated into the engine, allowing for cleaner air-fuel mixtures and improved combustion efficiency.
Benefits of Installing a Catch Can
- Improved Engine Performance: By reducing oil vapor in the intake, a catch can helps maintain optimal air-fuel ratios.
- Enhanced Engine Longevity: Removing harmful contaminants can lead to less wear and tear on engine components.
- Better Fuel Efficiency: Cleaner combustion can improve fuel economy.
- Reduced Carbon Build-up: A catch can minimizes the buildup of carbon deposits in the intake system.
How a Catch Can Boosts Power
The installation of a catch can can lead to a noticeable increase in horsepower. Here’s how:
- Cleaner Combustion: By preventing oil vapors from entering the combustion chamber, the catch can allows for a more efficient burn of the fuel.
- Optimal Air-Fuel Mixture: A catch can helps ensure that the air-fuel mixture is as clean as possible, leading to better combustion efficiency.
- Reduced Knock: Cleaner intake air can reduce engine knock, allowing for more aggressive tuning and timing adjustments.
Installation Process
Installing a catch can on your 2015 Subaru WRX is a straightforward process, but it requires some basic tools and mechanical knowledge. Here’s a step-by-step guide:
- Gather Tools: You’ll need a socket set, wrenches, and possibly some hose clamps.
- Locate PCV System: Identify the Positive Crankcase Ventilation (PCV) system in your engine bay.
- Disconnect Hoses: Carefully disconnect the hoses leading to and from the PCV system.
- Install Catch Can: Connect the catch can to the PCV system using the supplied hoses.
- Secure Connections: Ensure all connections are tight and secure to prevent leaks.
- Test the System: Start your engine and check for any leaks or issues.
Choosing the Right Catch Can
When selecting a catch can for your WRX, consider the following factors:
- Material: Look for durable materials such as aluminum or high-quality plastic.
- Capacity: A larger capacity can hold more oil and contaminants, reducing the frequency of emptying.
- Design: Ensure it has a good design that allows for easy installation and maintenance.
- Brand Reputation: Choose a catch can from a reputable brand known for quality products.
Potential Drawbacks
While catch cans offer several benefits, there are some potential drawbacks to consider:
- Maintenance: Catch cans require periodic emptying and cleaning, which can be inconvenient.
- Cost: Depending on the brand and model, a catch can can be an additional expense.
- Installation Complexity: Some may find the installation process challenging without prior experience.
Conclusion
Installing a catch can on your 2015 Subaru WRX can provide significant benefits, including a potential power boost of around 10 horsepower. By improving engine performance and longevity, a catch can is a worthwhile investment for those looking to maximize their vehicle’s capabilities. Always choose a high-quality catch can and follow proper installation procedures to enjoy the full benefits of this modification.