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The EJ255 engine has garnered attention for its performance potential, especially when paired with aftermarket modifications like the APS Cold Air Intake and Invidia Cat-Back Exhaust. These enhancements not only improve power output but also significantly alter the sound profile of the vehicle.
Understanding the EJ255 Engine
The EJ255 is a turbocharged flat-four engine commonly found in Subaru vehicles. Known for its robust design and tuning potential, the EJ255 offers a solid foundation for performance upgrades. It’s important to understand its specifications before diving into modifications.
- Displacement: 2.5 liters
- Configuration: Flat-four (horizontally opposed)
- Max Power: Approximately 250 hp
- Max Torque: Around 250 lb-ft
Benefits of the APS Cold Air Intake
The APS Cold Air Intake system is designed to improve airflow to the engine, which can lead to increased horsepower and torque. Here are some of the key benefits:
- Improved Airflow: The APS intake allows for a higher volume of cooler air to enter the engine, enhancing combustion efficiency.
- Increased Power: Many users report noticeable gains in horsepower and torque after installation.
- Better Throttle Response: Enhanced airflow contributes to quicker throttle response, making the car feel more agile.
- Sound Enhancement: The intake produces a more aggressive engine sound, adding to the driving experience.
Invidia Cat-Back Exhaust System Overview
The Invidia Cat-Back Exhaust system is another popular modification for the EJ255 engine. This exhaust system is designed to improve exhaust flow and enhance the sound of the vehicle. Key features include:
- High-Quality Materials: Constructed from stainless steel for durability and resistance to corrosion.
- Increased Flow: The design reduces back pressure, allowing the engine to breathe more freely.
- Aggressive Sound: The exhaust note is deeper and more aggressive than the factory system, enhancing the driving experience.
- Weight Reduction: A lighter exhaust system can contribute to improved performance by reducing overall vehicle weight.
Combining APS Cold Air Intake and Invidia Exhaust
When combined, the APS Cold Air Intake and Invidia Cat-Back Exhaust create a synergistic effect that maximizes the EJ255’s performance. The improvements in airflow from both systems lead to significant gains in power and an exhilarating sound profile.
- Power Gains: Users frequently report power increases of 20-30 hp when both modifications are installed.
- Enhanced Sound: The combination produces a rich, throaty sound that is both aggressive and refined.
- Improved Performance: The overall driving experience is enhanced with better throttle response and acceleration.
Installation Considerations
Installing the APS Cold Air Intake and Invidia Cat-Back Exhaust can be done at home with basic tools, but some considerations should be kept in mind:
- Tools Required: Basic hand tools, including wrenches and screwdrivers.
- Time Commitment: Expect to spend 2-4 hours for both installations.
- Professional Help: If unsure, consider seeking professional installation to ensure proper fitment and performance.
Conclusion
The combination of the APS Cold Air Intake and Invidia Cat-Back Exhaust is a powerful upgrade for the EJ255 engine. With noticeable gains in power and an exhilarating sound, these modifications enhance both performance and driving enjoyment. Whether you’re a casual driver or a performance enthusiast, these upgrades are worth considering for your Subaru.