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The Mitsubishi Evo is known for its performance and tuning potential. One of the most effective upgrades for increasing power is the installation of a high-performance exhaust system. In this article, we will explore how to install the HKS 3.5-inch exhaust to achieve a significant boost in horsepower, specifically between 15 to 20 HP.
Understanding the Benefits of Upgrading Your Exhaust
Upgrading to a larger diameter exhaust system can enhance your vehicle’s performance in several ways:
- Improved Exhaust Flow: A 3.5-inch diameter allows for better exhaust flow, reducing back pressure.
- Increased Horsepower: More efficient exhaust systems can lead to noticeable horsepower gains.
- Enhanced Sound: A performance exhaust can give your Evo a more aggressive sound.
- Weight Reduction: Aftermarket exhausts are often lighter than stock systems.
Tools and Materials Needed
Before starting the installation, gather the following tools and materials:
- HKS 3.5-inch Exhaust System
- Socket Set
- Wrench Set
- Jack and Jack Stands
- Exhaust Hangers
- Safety Goggles
- Gloves
Step-by-Step Installation Guide
Step 1: Prepare Your Vehicle
Begin by parking your Mitsubishi Evo on a level surface. Ensure the engine is cool, and then lift the vehicle using a jack and secure it with jack stands.
Step 2: Remove the Stock Exhaust
Using your socket set, remove the bolts connecting the stock exhaust to the downpipe and the hangers supporting the exhaust. Carefully lower the stock exhaust from the vehicle.
Step 3: Install the HKS Exhaust
Position the HKS 3.5-inch exhaust in place. Start by attaching the exhaust to the downpipe using the provided bolts. Ensure all connections are secure.
Step 4: Secure the Exhaust Hangers
Attach the exhaust hangers to the chassis of the vehicle. Make sure the exhaust is properly aligned and does not come into contact with any other components.
Step 5: Final Checks
Once everything is installed, double-check all bolts and connections. Lower the vehicle and start the engine to listen for any unusual noises. Ensure there are no leaks.
Expected Performance Gains
After the installation of the HKS 3.5-inch exhaust, you can expect a noticeable increase in power. Many users report gains between 15 to 20 horsepower, depending on other modifications and tuning.
Tuning for Maximum Performance
To fully realize the potential of your new exhaust system, consider tuning your vehicle. A proper tune can optimize fuel maps and ignition timing, further enhancing performance.
Conclusion
Installing the HKS 3.5-inch exhaust on your Mitsubishi Evo is an excellent way to increase power and improve overall performance. With the right tools and a bit of effort, you can achieve substantial horsepower gains and enjoy a more exhilarating driving experience.