Evo X Cold Air Intake Install: Improve Throttle Response and Add 15 Hp for Under $300

The Mitsubishi Lancer Evolution X, known for its performance and tuning potential, can greatly benefit from a cold air intake system. This modification is not only cost-effective but also enhances throttle response and can add up to 15 horsepower. In this guide, we will walk you through the installation process of a cold air intake for the Evo X, ensuring that you can achieve these performance gains with ease.

Why Upgrade to a Cold Air Intake?

A cold air intake (CAI) system replaces the factory air intake system, allowing for better airflow to the engine. Here are a few reasons why you should consider this upgrade:

  • Improved Throttle Response: A CAI allows the engine to breathe better, leading to quicker throttle response.
  • Increased Horsepower: Many users report gains of up to 15 hp with a CAI installed.
  • Enhanced Engine Sound: A CAI can give your Evo X a more aggressive engine note.
  • Cost-Effective Mod: For under $300, you can achieve significant performance improvements.

Tools and Materials Needed

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

  • Cold Air Intake Kit
  • Socket Set
  • Ratchet Wrench
  • Flathead Screwdriver
  • Phillips Screwdriver
  • Torque Wrench
  • Shop Towels
  • Safety Glasses

Step-by-Step Installation Guide

Step 1: Preparation

Start by parking your Evo X on a flat surface and engaging the parking brake. Allow the engine to cool down completely before beginning the installation. Gather all tools and materials, and put on your safety glasses.

Step 2: Remove the Factory Intake

Open the hood and locate the factory air intake system. Follow these steps to remove it:

  • Disconnect the negative battery terminal to prevent any electrical issues.
  • Unclip and remove the air intake duct from the throttle body.
  • Unscrew and detach the airbox from its mounting points.
  • Carefully pull out the factory air filter and intake assembly.

Step 3: Install the Cold Air Intake

Now that the factory intake is removed, it’s time to install the new cold air intake:

  • Place the new air filter into the designated area of the cold air intake kit.
  • Attach the intake tube to the throttle body using the provided clamps.
  • Secure the intake system to the vehicle’s mounting points.
  • Ensure all connections are tight and there are no air leaks.

Step 4: Reconnect the Battery and Test

After the installation is complete, reconnect the negative battery terminal. Start the engine and let it idle for a few minutes. Listen for any unusual sounds and check for any leaks around the intake area.

Post-Installation Tips

Once the cold air intake is installed, consider the following tips to maximize performance:

  • Regular Maintenance: Clean the air filter regularly to ensure optimal airflow.
  • Monitor Engine Performance: Keep an eye on any changes in engine performance or check engine lights.
  • Consider Tuning: For even greater performance gains, consider a tune to complement your new intake.

Conclusion

Installing a cold air intake on your Evo X is a straightforward process that can yield significant performance improvements. With the right tools and a little bit of time, you can enhance your vehicle’s throttle response and add up to 15 horsepower for under $300. Enjoy the benefits of your upgrade and the enhanced driving experience!