Guide to Installing a Aftermarket Intercooler on Your Subaru Wrx

Installing an aftermarket intercooler on your Subaru WRX can significantly improve engine performance by reducing intake air temperatures. This guide provides step-by-step instructions to help you install your new intercooler safely and effectively.

Tools and Materials Needed

  • Socket set and ratchet
  • Screwdrivers (Phillips and flat-head)
  • Intercooler kit
  • Hose clamps
  • Pry tools
  • Coolant catch basin
  • Safety gloves and glasses

Preparation

Before starting, ensure your vehicle is parked on a flat surface and the engine is cool. Disconnect the negative terminal of the battery to prevent electrical issues. Drain the coolant system if necessary, as some intercooler replacements may involve removing parts of the cooling system.

Removing the Stock Intercooler

Begin by locating the stock intercooler, usually mounted on top of the engine. Use the socket set to remove the bolts securing it in place. Carefully disconnect the hoses attached to the intercooler, noting their positions for reinstallation. Use pry tools if needed to gently detach any clips or brackets.

Installing the Aftermarket Intercooler

Position the new intercooler in the same location as the stock unit. Secure it with the provided mounting brackets and bolts. Reconnect the hoses, ensuring they are clamped tightly to prevent leaks. Double-check all connections and fittings for security.

Final Steps

Reinstall any components removed during the process, including the coolant system if drained. Reconnect the negative battery terminal. Start the engine and check for leaks or unusual noises. It’s recommended to perform a test drive and monitor engine temperatures to ensure proper operation.

Tips for Success

  • Always wear safety gear during installation.
  • Follow the specific instructions provided with your intercooler kit.
  • Ensure all clamps and bolts are tightened securely.
  • Check for leaks after installation and during initial engine runs.

By following these steps, you can enhance your Subaru WRX’s performance with a new aftermarket intercooler. Proper installation ensures reliable operation and maximizes the benefits of your upgrade.