Table of Contents
Installing a turbo back exhaust system on your WRX can significantly enhance performance and sound. This guide will walk you through the step-by-step process of installing the Borla 3-inch cat-back system.
Tools and Materials Needed
- Jack and jack stands
- Socket set
- Wrenches
- Torque wrench
- Rubber mallet
- Exhaust hanger removal tool
- New exhaust gaskets
- Borla 3-inch cat-back exhaust system
Preparation Steps
Before you start the installation, ensure that you have all the necessary tools and materials. Here’s how to prepare:
- Park your WRX on a level surface.
- Engage the parking brake.
- Disconnect the battery to avoid any electrical issues.
- Raise the vehicle using the jack and secure it with jack stands.
Removing the Stock Exhaust
To install the new Borla exhaust, you first need to remove the stock exhaust system. Follow these steps:
- Locate the bolts connecting the stock exhaust to the turbo downpipe.
- Use a socket wrench to remove the bolts. Keep these bolts as you will need them for the new system.
- Remove the exhaust hangers using the exhaust hanger removal tool. A rubber mallet may help if they are stubborn.
- Carefully slide the stock exhaust out from under the vehicle.
Installing the Borla 3-inch Cat-Back System
Once the stock exhaust is removed, it’s time to install the new Borla system. Here’s how:
- Begin by placing the new Borla exhaust system under the vehicle.
- Align the exhaust pipes with the hangers and the downpipe.
- Use the stock bolts to connect the exhaust to the turbo downpipe. Tighten them securely.
- Install the exhaust hangers in their respective places, ensuring a snug fit.
- Double-check all connections and ensure everything is aligned properly.
Final Adjustments and Checks
After the installation is complete, perform the following checks:
- Ensure all bolts are tightened to the manufacturer’s specifications using a torque wrench.
- Check for any exhaust leaks by starting the engine and listening for unusual sounds.
- Inspect the alignment of the exhaust tips to ensure they are centered and straight.
Reconnecting the Battery and Lowering the Vehicle
Once you are satisfied with the installation, it’s time to reconnect the battery and lower the vehicle:
- Reconnect the battery terminals.
- Carefully lower the vehicle from the jack stands.
- Start the engine and let it idle for a few minutes to ensure everything is functioning correctly.
Conclusion
Installing the Borla 3-inch cat-back exhaust system on your WRX can enhance both the performance and sound of your vehicle. By following these steps carefully, you can complete the installation successfully and enjoy the benefits of your new exhaust system.