Exhaust Downpipe Upgrade and Installation ~ Stage 2 Golf R

Introduction

This tutorial will guide you through the process of upgrading and installing a downpipe on a 2019 MK7.5 Golf R. This upgrade is part of a Stage 2 build which enhances exhaust flow and sound, ultimately improving performance. We will cover necessary tools, preparation steps, and installation instructions.

Step 1: Gather Required Tools and Parts

Before starting the installation, ensure you have the following tools and parts:

Tools Needed

• Impact driver
• Small impact driver
• Electric ratchet
• Magnetic tray
• GrypMat (optional)
• Basic hand tools (sockets, wrenches)
• Box wrench set
• Screwdriver set
• Shop towels
• Allen sockets
• Torx sockets
• O2 sensor wrench

Parts Needed

• Upgraded downpipe with high flow catalytic converter

Step 2: Prepare the Vehicle

• Park the Golf R on a flat surface and ensure it is cool to the touch.
• Lift the vehicle using a jack and secure it with jack stands for safety.

Step 3: Remove the Stock Downpipe

1. Disconnect the Battery

   • Remove the negative terminal to prevent any electrical shorts.

2. Access the Downpipe

   • Remove any underbody panels or heat shields obstructing access to the downpipe.

3. Unbolt the Downpipe

   • Use the appropriate socket to unbolt the downpipe from the turbo and exhaust system.
   • Carefully remove the O2 sensor using the O2 sensor wrench. Avoid damaging the sensor.

4. Detach the Downpipe

   • Once all bolts are removed, carefully pull the stock downpipe out of the vehicle.

Step 4: Install the New Downpipe

1. Position the New Downpipe

   • Align the upgraded downpipe with the turbo and exhaust system.

2. Secure the Downpipe

   • Hand-tighten the bolts to secure the downpipe in place before fully tightening.

3. Reinstall the O2 Sensor

   • Carefully reinstall the O2 sensor into the new downpipe.

4. Tighten All Bolts

   • Use a torque wrench to tighten all bolts to the manufacturer’s specifications to ensure a proper seal.

Step 5: Reassemble the Vehicle

• Reinstall any underbody panels or heat shields removed during the disassembly.
• Reconnect the battery by attaching the negative terminal.

Step 6: Test the Installation

• Start the vehicle and listen for any unusual noises.
• Check for exhaust leaks around the downpipe connection.

Conclusion

You have successfully upgraded and installed the downpipe on your MK7.5 Golf R. This modification should enhance exhaust flow and improve engine performance. For further upgrades, consider installing a charge cooler, turbo inlet pipe, and Stage 2 software. Always consult a professional if you encounter any issues during the installation process. Enjoy your upgraded ride!