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Installing a turbo back exhaust system on your Subaru WRX STI can significantly enhance its performance and sound. This guide will provide you with essential tips to ensure a smooth installation process.
Understanding the Turbo Back Exhaust System
A turbo back exhaust system replaces the entire exhaust system from the turbocharger to the rear of the vehicle. It typically includes the downpipe, mid-pipe, and cat-back exhaust. This upgrade can improve exhaust flow, increase horsepower, and provide a more aggressive sound.
Tools and Materials Needed
- Socket set
- Wrench set
- Jack and jack stands
- Torque wrench
- Exhaust hanger removal tool
- New exhaust gaskets
- Anti-seize compound
Preparation Steps
Before starting the installation, ensure that you have all the necessary tools and materials at hand. Follow these preparation steps:
- Park your Subaru on a level surface.
- Engage the parking brake.
- Disconnect the negative battery terminal to avoid any electrical issues.
- Lift the vehicle using a jack and secure it with jack stands.
Removing the Stock Exhaust System
To install the new turbo back exhaust, you must first remove the stock exhaust system. Follow these steps:
- Start by removing the exhaust hangers using the exhaust hanger removal tool.
- Loosen the bolts connecting the downpipe to the turbocharger.
- Remove the mid-pipe and cat-back sections by loosening the relevant bolts.
- Carefully take out the entire stock exhaust system from the vehicle.
Installing the Turbo Back Exhaust
Once the stock exhaust is removed, you can proceed with the installation of the turbo back exhaust system. Follow these steps:
- Start with the downpipe. Align it with the turbocharger and secure it using the new gaskets and bolts.
- Attach the mid-pipe to the downpipe. Ensure all connections are tight and secure.
- Install the cat-back section, ensuring that it aligns properly with the mid-pipe.
- Reinstall the exhaust hangers to secure the exhaust system in place.
Final Checks and Adjustments
After installing the turbo back exhaust, it’s essential to perform some final checks:
- Double-check all bolts and connections for tightness.
- Ensure that the exhaust system is not touching any other parts of the vehicle.
- Reconnect the negative battery terminal.
- Start the engine and listen for any unusual sounds indicating leaks.
Post-Installation Tips
After the installation, consider the following tips to maintain your new turbo back exhaust:
- Regularly inspect the exhaust system for rust or damage.
- Check for exhaust leaks after the first few drives.
- Keep the exhaust clean to prevent buildup of debris.
- Consider a professional tune to optimize performance after installation.
Conclusion
Installing a turbo back exhaust on your Subaru WRX STI can be a rewarding project that enhances both performance and sound. By following these tips and steps, you can ensure a successful installation and enjoy the benefits of your upgrade.