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The FA24 engine, known for its impressive performance, has become a popular choice among automotive enthusiasts. One of the most common modifications for this engine is the installation of aftermarket exhaust systems. But how much power can you really gain from these upgrades? In this article, we will explore the benefits of aftermarket exhausts for the FA24 engine, their impact on performance, and what you can realistically expect in terms of power gains.
Understanding the FA24 Engine
The FA24 engine is a turbocharged boxer engine produced by Subaru. It features a 2.4-liter displacement and is known for its balance of power and efficiency. This engine is found in various Subaru models, including the Ascent, Outback, and Legacy. With its unique design, the FA24 engine offers a lower center of gravity, enhancing vehicle stability and handling.
Why Upgrade to an Aftermarket Exhaust?
Upgrading to an aftermarket exhaust system can provide several benefits for the FA24 engine:
- Improved Exhaust Flow: Aftermarket exhausts are designed to reduce restrictions, allowing exhaust gases to flow more freely.
- Weight Reduction: Many aftermarket systems are lighter than factory exhausts, contributing to overall vehicle performance.
- Enhanced Sound: An aftermarket exhaust can provide a more aggressive and sporty sound, enhancing the driving experience.
- Potential Power Gains: A well-designed exhaust can increase horsepower and torque, improving acceleration and overall performance.
Measuring Power Gains
When considering an aftermarket exhaust, it’s essential to understand how power gains are measured. Power is typically measured in horsepower (hp) and torque (lb-ft). The gains from an aftermarket exhaust can vary based on several factors, including the exhaust design, the engine’s tuning, and other modifications.
Factors Influencing Power Gains
Several factors can influence the amount of power gained from an aftermarket exhaust:
- Exhaust Design: The design of the exhaust system, including the diameter of the pipes and the type of muffler, can significantly affect performance.
- Tuning: If the engine is not properly tuned after installing an aftermarket exhaust, the potential power gains may not be fully realized.
- Supporting Modifications: Other modifications, such as a cold air intake or a performance tune, can enhance the benefits of an aftermarket exhaust.
- Quality of the Exhaust: Higher-quality exhaust systems tend to yield better results in terms of performance and durability.
Expected Power Gains from Aftermarket Exhausts
While the exact power gains can vary, many FA24 engine owners report noticeable improvements after installing aftermarket exhaust systems. On average, you can expect:
- 5-15 hp increase: Many aftermarket exhausts provide a moderate increase in horsepower.
- 10-20 lb-ft increase in torque: Torque improvements can enhance acceleration and responsiveness.
- Improved throttle response: A less restricted exhaust can lead to quicker throttle response.
Popular Aftermarket Exhaust Options for the FA24 Engine
There are several aftermarket exhaust options available for the FA24 engine. Some popular choices include:
- Invidia Q300: Known for its aggressive sound and performance, the Q300 is a popular choice among enthusiasts.
- Remark Performance: This brand offers high-quality exhaust systems that provide excellent power gains and sound.
- GrimmSpeed: Their exhaust systems are designed with performance in mind, offering a balance of sound and efficiency.
- Borla: Known for their distinctive sound, Borla exhausts are a favorite for those looking to enhance their vehicle’s performance.
Installation Considerations
Installing an aftermarket exhaust can be a straightforward process, but there are a few considerations to keep in mind:
- Professional Installation: While some enthusiasts may choose to install the exhaust themselves, professional installation can ensure proper fitment and performance.
- Compatibility: Ensure that the exhaust is compatible with your specific FA24 engine model.
- Legal Considerations: Check local regulations regarding noise levels and emissions standards, as some aftermarket exhausts may not be street legal.
Conclusion
Upgrading to an aftermarket exhaust for the FA24 engine can provide significant benefits, including improved power and sound. While the exact power gains can vary, many enthusiasts report noticeable increases in horsepower and torque. By considering factors such as exhaust design, tuning, and supporting modifications, you can maximize the performance of your FA24 engine. Whether you choose a popular option like the Invidia Q300 or a different brand, an aftermarket exhaust can enhance your driving experience and unleash the full potential of your vehicle.