Installing a Twin-scroll Turbocharger: Step-by-step Guide with a Mitsubishi Td04l-13t for Subaru Wrx

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Installing a twin-scroll turbocharger can significantly enhance your Subaru WRX’s performance. This guide will walk you through the process of installing a Mitsubishi TD04L-13T turbocharger step-by-step.

Tools and Materials Needed

  • Socket set
  • Torque wrench
  • Flathead and Phillips screwdrivers
  • Wrenches
  • Turbocharger (Mitsubishi TD04L-13T)
  • Gaskets
  • Oil feed and return lines
  • Intercooler piping
  • Boost controller (optional)
  • Coolant and oil

Preparation Steps

Before starting the installation, ensure that your vehicle is parked on a flat surface and the engine is cool. Disconnect the battery to prevent any electrical issues during the installation.

Remove the Existing Turbocharger

Begin by removing the existing turbocharger. Follow these steps:

  • Remove the air intake duct.
  • Disconnect the intercooler piping.
  • Unbolt the existing turbo from the manifold.
  • Disconnect the oil feed and return lines.
  • Remove the existing turbocharger.

Installing the Mitsubishi TD04L-13T Turbocharger

With the old turbo removed, it’s time to install the Mitsubishi TD04L-13T. Follow these steps carefully:

  • Place the new turbocharger onto the manifold.
  • Align the bolt holes and secure the turbo with bolts.
  • Reconnect the oil feed line to the new turbo.
  • Attach the oil return line.
  • Install the new gaskets to prevent leaks.

Connecting Intercooler and Intake

After securing the turbo, reconnect the intercooler piping and air intake duct:

  • Attach the intercooler piping to the turbo outlet.
  • Secure all clamps and connections tightly.
  • Reinstall the air intake duct to the turbo inlet.

Final Steps

Once everything is connected, it’s time to finalize the installation:

  • Double-check all connections and bolts for tightness.
  • Reconnect the battery.
  • Start the engine and let it idle for a few minutes.
  • Check for any oil or coolant leaks.
  • Take the car for a test drive to ensure everything is functioning properly.

Conclusion

Installing a twin-scroll turbocharger like the Mitsubishi TD04L-13T can greatly enhance your Subaru WRX’s performance. By following these steps, you can ensure a successful installation and enjoy the benefits of increased power and efficiency.