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The B58 engine, known for its impressive performance, can greatly benefit from a downpipe upgrade. This guide will walk you through the installation process of a B58 downpipe, specifically designed to enhance power output to approximately 450 horsepower when paired with Dinan components and high-flow catalytic converters.
Tools and Materials Needed
- Socket set (including 10mm, 13mm, and 15mm sockets)
- Torque wrench
- Ratchet and extensions
- Flathead and Phillips screwdrivers
- Cutting tool (if necessary)
- New downpipe (Dinan recommended)
- High-flow catalytic converters (if applicable)
- Heat-resistant gloves
- Safety goggles
- Anti-seize lubricant
Preparation Steps
Before starting the installation, ensure the vehicle is parked on a flat surface and the engine is cool. Disconnect the negative battery terminal to prevent any electrical issues during the process.
Lift the Vehicle
Use a jack and jack stands to lift the vehicle safely. Ensure it is secure before crawling underneath.
Remove the Undertray
Using the appropriate socket, remove the bolts securing the undertray. This will provide access to the exhaust system.
Removing the Stock Downpipe
With the undertray removed, locate the stock downpipe. It is connected to the turbocharger and the exhaust system.
Unplug Sensors and Disconnect Hoses
Carefully unplug any sensors connected to the downpipe. If there are any hoses attached, disconnect them as well.
Remove Bolts Securing the Downpipe
Using the socket set, remove the bolts that secure the downpipe to the turbo and exhaust system. Keep these bolts for the installation of the new downpipe.
Extract the Stock Downpipe
Once all connections are removed, gently pull the stock downpipe out of its position. Be cautious of any remaining connections that may not have been noticed.
Installing the New Downpipe
Now that the stock downpipe has been removed, it’s time to install the new Dinan downpipe.
Position the New Downpipe
Carefully position the new downpipe into place, ensuring that it aligns with the turbo and exhaust system connections.
Secure the Downpipe
Using the original bolts, secure the downpipe to the turbo and exhaust system. Make sure to torque them to the manufacturer’s specifications to prevent any leaks.
Reconnect Sensors and Hoses
Reconnect any sensors and hoses that were previously disconnected. Ensure they are secure and properly positioned.
Final Steps
With the new downpipe installed, it’s time to reassemble the vehicle.
Reinstall the Undertray
Position the undertray back into place and secure it with the bolts removed earlier.
Reconnect the Battery
Reconnect the negative battery terminal. Ensure all connections are tight and secure.
Start the Engine
Start the engine and listen for any unusual noises. Check for exhaust leaks around the downpipe area.
Conclusion
Congratulations! You have successfully installed a B58 downpipe, enhancing your vehicle’s performance to achieve a boost of approximately 450 horsepower. Enjoy the improved power and sound that comes with this upgrade!