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The MBRP Turbo Back Exhaust system is a popular upgrade for Subaru WRX owners seeking enhanced performance and sound. However, like any aftermarket modification, it can present certain issues. In this article, we will explore common problems associated with MBRP Turbo Back Exhausts on the WRX and provide troubleshooting tips and fixes.
Common Issues with MBRP Turbo Back Exhausts
- Excessive Noise Levels
- Fitment Problems
- Check Engine Light Activation
- Exhaust Leaks
- Vibrations and Rattling Sounds
Excessive Noise Levels
One of the most common complaints about MBRP Turbo Back Exhausts is excessive noise. While many enthusiasts appreciate a louder exhaust note, some may find it too intrusive, especially during daily driving.
Troubleshooting: If the noise level is uncomfortably loud, check for any modifications to the exhaust system, such as the removal of mufflers or resonators. These components are designed to reduce noise and their absence can lead to a significantly louder exhaust.
Fixes: Consider reinstalling a muffler or resonator to help dampen the sound. Alternatively, you may want to look into quieter exhaust options from MBRP or other manufacturers.
Fitment Problems
Fitment issues can arise during installation, leading to misalignment or improper sealing of the exhaust components. This can result in performance issues and potential damage to the exhaust system.
Troubleshooting: If you notice any gaps or misalignment after installation, double-check all mounting points and hangers to ensure they are correctly positioned.
Fixes: Adjust the positioning of the exhaust components as needed. If necessary, use additional hangers or brackets to secure the exhaust properly.
Check Engine Light Activation
After installing an MBRP Turbo Back Exhaust, some WRX owners may experience the activation of the check engine light (CEL). This can be caused by changes in exhaust flow and sensor readings.
Troubleshooting: Use an OBD-II scanner to identify any trouble codes related to the exhaust system. Common codes may include those related to the oxygen sensors or catalytic converter.
Fixes: Depending on the code, you may need to install an aftermarket tune or a downpipe with a high-flow catalytic converter to resolve the issue. Ensure that all sensors are correctly connected and functioning.
Exhaust Leaks
Exhaust leaks can occur at various joints and connections within the MBRP Turbo Back Exhaust system, leading to a decrease in performance and an increase in noise.
Troubleshooting: Inspect all joints and connections for signs of exhaust gas escaping. You may hear a hissing sound or smell exhaust fumes if a leak is present.
Fixes: Tighten any loose bolts or clamps and consider using high-temperature sealant on joints to prevent leaks. If the issue persists, you may need to replace damaged gaskets.
Vibrations and Rattling Sounds
Some WRX owners may experience vibrations or rattling sounds after installing the MBRP Turbo Back Exhaust. This can be caused by improper mounting or contact with other components.
Troubleshooting: Check for any loose components or areas where the exhaust may be making contact with the chassis or suspension parts.
Fixes: Ensure that all hangers are secure and that the exhaust is properly aligned. If necessary, add rubber isolators or spacers to prevent contact with other parts of the vehicle.
Conclusion
While MBRP Turbo Back Exhausts can greatly enhance the performance and sound of a WRX, they can also introduce various issues. By understanding these common problems and following the troubleshooting steps and fixes outlined in this article, WRX owners can enjoy their aftermarket exhaust system with confidence.