Diy Guide: Installing an $85 Exhaust Header to Add 15-20 Hp

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Upgrading your vehicle’s performance can often feel overwhelming, especially when it comes to modifications that require mechanical expertise. However, installing an exhaust header is a manageable DIY project that can significantly enhance your car’s horsepower. In this guide, we will walk you through the steps to install an $85 exhaust header, potentially adding 15-20 horsepower to your vehicle.

What You Will Need

  • Exhaust header kit ($85)
  • Socket wrench set
  • Torque wrench
  • Jack and jack stands
  • Safety glasses
  • Gloves
  • Gasket maker
  • Shop manual for your vehicle

Before you begin, make sure you have all the necessary tools and materials. A shop manual for your specific vehicle can be particularly helpful, as it will provide torque specifications and other important details.

Preparation Steps

Before diving into the installation, take the time to prepare your workspace and vehicle. Follow these steps:

  • Park your vehicle on a flat surface and engage the parking brake.
  • Disconnect the negative battery terminal to avoid any electrical issues.
  • Raise the vehicle using a jack and secure it with jack stands.
  • Remove the old exhaust manifold if applicable.

Removing the Old Exhaust Manifold

To install the new exhaust header, you must first remove the existing exhaust manifold. Here’s how:

  • Locate the exhaust manifold and identify all the bolts securing it to the engine.
  • Using a socket wrench, carefully remove the bolts. Keep them in a safe place for later use.
  • Once the bolts are removed, gently pull the manifold away from the engine.
  • Inspect the old gasket and remove any remnants from the engine surface.

Installing the New Exhaust Header

With the old manifold removed, it’s time to install the new exhaust header. Follow these steps:

  • Position the new exhaust header onto the engine block.
  • Apply a thin layer of gasket maker to the header surface to ensure a good seal.
  • Align the header holes with the engine block and insert the bolts.
  • Using a torque wrench, tighten the bolts to the manufacturer’s specifications. Refer to your shop manual for the correct torque settings.

Connecting the Exhaust System

After securing the header, you will need to connect it to the rest of the exhaust system:

  • Locate the exhaust pipe that connects to the header.
  • Align the exhaust pipe with the header and secure it with the appropriate hardware.
  • Ensure all connections are tight to prevent leaks.

Final Checks and Reassembly

Before lowering your vehicle and reconnecting the battery, perform the following checks:

  • Inspect all connections for tightness and proper alignment.
  • Check for any signs of leaks around the header and exhaust connections.
  • Reconnect the negative battery terminal.

Testing Your Installation

Once everything is reassembled, it’s time to test your new exhaust header:

  • Start your vehicle and let it idle for a few minutes.
  • Listen for any unusual sounds that may indicate a leak.
  • Take your vehicle for a test drive to feel the performance difference.

Conclusion

Installing an exhaust header can be a rewarding DIY project that enhances your vehicle’s performance. With just an $85 investment and some basic tools, you can add 15-20 horsepower to your ride. Always remember to follow safety precautions and consult your vehicle’s manual for specific instructions. Happy wrenching!