How to Install the Borgwarner Efr 7163 Turbo on Your Wrx: a Complete Step-by-step Guide

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The BorgWarner EFR 7163 turbocharger is a popular upgrade for Subaru WRX enthusiasts looking to enhance performance. This guide provides a comprehensive, step-by-step approach to installing the EFR 7163 turbo on your WRX.

Tools and Materials Needed

  • Socket set
  • Wrench set
  • Torque wrench
  • Flathead screwdriver
  • Phillips screwdriver
  • Gasket scraper
  • New turbo gasket
  • Oil feed line
  • Oil drain line
  • Coolant lines (if applicable)
  • Boost controller (optional)
  • Safety glasses
  • Gloves

Preparation Steps

Before starting the installation, ensure you have all necessary tools and materials. Follow these preparation steps:

  • Disconnect the negative battery terminal to prevent electrical shorts.
  • Remove the engine cover if applicable.
  • Drain the coolant and oil from the engine.

Removing the Stock Turbo

To install the EFR 7163, you need to remove the stock turbo. Follow these steps:

  • Disconnect the intake pipe from the stock turbo.
  • Remove the exhaust manifold heat shield.
  • Unbolt the turbo from the exhaust manifold.
  • Disconnect the oil feed and drain lines from the stock turbo.
  • Disconnect any coolant lines if your model has them.
  • Carefully remove the stock turbo from the engine bay.

Preparing the EFR 7163 Turbo

Before installation, prepare the EFR 7163 turbo for mounting:

  • Inspect the turbo for any damage or defects.
  • Install the new oil feed line securely.
  • Attach the oil drain line to the turbo.
  • Install the new turbo gasket onto the turbo flange.

Installing the EFR 7163 Turbo

Now it’s time to install the EFR 7163 turbo:

  • Carefully position the EFR 7163 turbo onto the exhaust manifold.
  • Align the bolt holes and secure the turbo with bolts, tightening them to manufacturer specifications.
  • Reconnect the oil feed and drain lines, ensuring they are tight and leak-free.
  • If applicable, reconnect the coolant lines to the turbo.
  • Install the intake pipe onto the turbo, securing it properly.

Final Steps

After installing the turbo, follow these final steps to complete the installation:

  • Reinstall the exhaust manifold heat shield.
  • Refill the engine with oil and coolant.
  • Reconnect the negative battery terminal.
  • Start the engine and check for leaks.
  • Allow the engine to reach operating temperature and check the turbo’s performance.

Tuning Your WRX

After installation, tuning your WRX is crucial for optimal performance:

  • Consider installing a boost controller to manage boost levels effectively.
  • Reprogram the ECU for the new turbo setup.
  • Monitor air-fuel ratios and boost levels regularly.

Conclusion

Installing the BorgWarner EFR 7163 turbo on your WRX can significantly enhance performance. By following this step-by-step guide, you can ensure a successful installation and enjoy the benefits of your new turbo.