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The APS Turbo Back Exhaust system is a popular choice among Subaru WRX enthusiasts looking to enhance performance and sound. However, like any aftermarket modification, it can come with its own set of challenges. In this article, we will explore common issues faced by owners of the APS Turbo Back Exhaust on the Subaru WRX and provide solutions to fix them.
Common Issues with APS Turbo Back Exhaust
- Exhaust Leaks
- Increased Noise Levels
- Check Engine Light Activation
- Poor Fitment
- Excessive Vibration
1. Exhaust Leaks
Exhaust leaks can occur at various connection points in the APS Turbo Back Exhaust system, leading to a loss of power and undesirable noise. Identifying and fixing these leaks is crucial for optimal performance.
Symptoms of Exhaust Leaks
- Hissing or popping noises
- Decreased engine performance
- Unusual smells inside the cabin
How to Fix Exhaust Leaks
To fix exhaust leaks, follow these steps:
- Inspect all connection points for signs of leakage.
- Use a smoke test to identify hard-to-find leaks.
- Replace any damaged gaskets or seals.
- Tighten all bolts and clamps to the manufacturer’s specifications.
2. Increased Noise Levels
While many enthusiasts enjoy the aggressive sound of an aftermarket exhaust, excessive noise can be a problem. If your APS Turbo Back Exhaust is louder than expected, it may be due to improper installation or component failure.
Causes of Increased Noise
- Missing or damaged muffler
- Loose connections
- Incorrectly sized exhaust components
How to Reduce Noise Levels
To address increased noise levels, consider these solutions:
- Inspect and replace the muffler if necessary.
- Ensure all connections are tight and secure.
- Consider adding a resonator to reduce sound.
3. Check Engine Light Activation
Installing an aftermarket exhaust can sometimes trigger the check engine light (CEL) due to changes in exhaust flow or emissions readings. This can be frustrating, but there are ways to resolve it.
Common Triggers for CEL
- O2 sensor readings out of range
- Exhaust leaks affecting emissions
- Incorrectly tuned engine
How to Fix CEL Issues
To resolve check engine light issues, follow these steps:
- Use an OBD-II scanner to check for error codes.
- Inspect and replace faulty O2 sensors.
- Check for any exhaust leaks that could affect readings.
- Consider re-tuning the engine to accommodate the new exhaust.
4. Poor Fitment
Fitment issues can arise with aftermarket exhaust systems, leading to misalignment and potential damage. Ensuring a proper fit is essential for both performance and longevity.
Signs of Poor Fitment
- Exhaust hanging too low or too high
- Rubbing against chassis components
- Uneven gaps between components
How to Fix Fitment Issues
To correct fitment issues, consider the following:
- Recheck installation instructions and alignment.
- Adjust hangers and brackets as needed.
- Consult with a professional if necessary.
5. Excessive Vibration
Excessive vibration from the exhaust can lead to discomfort and potential damage to other components. Identifying the source of the vibration is key to resolving this issue.
Causes of Vibration
- Loose connections or mounts
- Unbalanced exhaust components
- Improper installation
How to Minimize Vibration
To minimize vibration, follow these steps:
- Inspect and tighten all mounts and connections.
- Check for balance in exhaust components.
- Consider using vibration-dampening mounts.
Conclusion
The APS Turbo Back Exhaust can significantly enhance your Subaru WRX’s performance and sound. However, being aware of common issues and knowing how to fix them will ensure you enjoy the benefits without the headaches. Regular maintenance and checks can help keep your exhaust system in top condition.