Table of Contents
The installation of headers on your GR86 can significantly enhance performance and sound. In this article, we will provide a step-by-step guide to help you through the installation process, specifically focusing on Mishimoto options.
Tools and Materials Needed
- Socket set
- Torque wrench
- Ratchet and extensions
- Header gaskets
- New bolts and nuts
- Jack and jack stands
- Safety glasses
- Gloves
- Shop towels
Preparation Steps
Before starting the installation, ensure that you have all the necessary tools and materials ready. Follow these preparation steps:
- Park the vehicle on a flat surface.
- Disconnect the battery to prevent any electrical issues.
- Lift the front of the car using a jack and secure it with jack stands.
- Remove any underbody panels that may obstruct access to the headers.
Removing the Stock Headers
To install the new Mishimoto headers, you must first remove the stock headers. Follow these steps:
- Remove the intake system to gain better access to the headers.
- Unbolt the exhaust manifold from the engine block.
- Disconnect any sensors or wiring harnesses attached to the headers.
- Carefully remove the stock headers from the vehicle.
Installing Mishimoto Headers
Now that the stock headers are removed, it’s time to install the Mishimoto headers. Follow these steps for a successful installation:
- Place the new header gaskets onto the engine block.
- Position the Mishimoto headers onto the gaskets.
- Secure the headers using new bolts and nuts, tightening them in a crisscross pattern.
- Reconnect any sensors or wiring harnesses that were removed earlier.
Reassembling the Vehicle
After installing the headers, it’s essential to reassemble the vehicle correctly. Follow these steps:
- Reinstall the intake system.
- Replace any underbody panels that were removed.
- Reconnect the battery.
- Lower the vehicle back to the ground.
Final Checks and Testing
After reassembling the vehicle, perform the following final checks:
- Start the engine and listen for any unusual noises.
- Check for exhaust leaks around the headers.
- Ensure that all sensors are functioning properly.
- Take the vehicle for a test drive to assess performance improvements.
Conclusion
Installing Mishimoto headers on your GR86 can be a rewarding project that enhances your vehicle’s performance. By following this step-by-step guide, you can successfully complete the installation and enjoy the benefits of improved exhaust flow and sound.