Installing a Cobb Accessport for Subaru Wrx: Step-by-step Custom Dyno Tuning Guide

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The Cobb Accessport is a popular tuning device for Subaru WRX owners looking to enhance their vehicle’s performance. This guide will walk you through the step-by-step process of installing a Cobb Accessport and performing custom dyno tuning to maximize your WRX’s potential.

What You Need

Before you begin the installation process, ensure you have the following items ready:

  • Cobb Accessport device
  • OBD-II connector
  • Computer with Accessport Manager software
  • Dyno tuning facility
  • Basic hand tools (screwdriver, wrench)

Step 1: Preparing Your Vehicle

Before installing the Accessport, make sure your Subaru WRX is in good working condition. Check the following:

  • Engine oil levels
  • Coolant levels
  • Battery health
  • Fuel quality

Step 2: Installing the Cobb Accessport

Follow these steps to install the Cobb Accessport:

  • Locate the OBD-II port in your Subaru WRX. It is usually found under the dashboard near the driver’s seat.
  • Plug the OBD-II connector from the Accessport into the OBD-II port.
  • Turn the ignition key to the “On” position without starting the engine.
  • Follow the on-screen instructions on the Accessport to complete the installation process.

Step 3: Downloading and Installing Accessport Manager

Accessport Manager is essential for managing your tunes and data. Here’s how to install it:

  • Visit the Cobb Tuning website.
  • Download the Accessport Manager software for your operating system.
  • Install the software by following the on-screen prompts.

Step 4: Connecting the Accessport to Your Computer

To upload custom tunes, connect the Accessport to your computer:

  • Use the USB cable provided with the Accessport.
  • Connect one end to the Accessport and the other end to your computer.
  • Open the Accessport Manager software.

Step 5: Uploading Custom Tunes

With the Accessport connected, you can now upload custom tunes:

  • Select the custom tune file you wish to upload.
  • Follow the prompts in Accessport Manager to upload the tune to the Accessport.
  • Once the upload is complete, disconnect the Accessport from your computer.

Step 6: Flashing the Custom Tune to Your Vehicle

Now it’s time to flash the custom tune to your Subaru WRX:

  • Reconnect the Accessport to the OBD-II port.
  • Turn the ignition to the “On” position.
  • Follow the on-screen instructions to select and flash the custom tune.
  • Wait for the flashing process to complete before starting the engine.

Step 7: Dyno Tuning Your WRX

After flashing the custom tune, it’s crucial to perform dyno tuning for optimal performance:

  • Schedule an appointment at a reputable dyno tuning facility.
  • Provide the tuner with your custom tune and any specific performance goals.
  • Allow the tuner to make adjustments based on real-time data from your WRX.

Step 8: Testing and Fine-Tuning

Once dyno tuning is complete, it’s essential to test your vehicle:

  • Take your WRX for a test drive to ensure everything is functioning properly.
  • Monitor engine performance and check for any error codes.
  • If necessary, return to the tuner for further adjustments.

Conclusion

Installing a Cobb Accessport and performing custom dyno tuning can significantly enhance your Subaru WRX’s performance. By following this step-by-step guide, you can ensure a successful installation and tuning process, allowing you to enjoy a more powerful and responsive driving experience.