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The Mitsubishi Eclipse GST is a popular platform among automotive enthusiasts, particularly for those looking to enhance performance through modifications. One of the most effective upgrades to consider is the installation of an upgraded exhaust system. In this article, we will explore the dyno testing results that demonstrate how these exhaust upgrades can yield significant horsepower gains, specifically in the range of 50 to 100 horsepower.
Understanding Dyno Testing
Before delving into the specifics of the Eclipse GST exhaust upgrades, it is essential to understand what dyno testing entails. A dynamometer, or dyno, measures the power output of an engine by simulating driving conditions. This testing allows enthusiasts to quantify performance gains from various modifications.
The Importance of Exhaust Systems
The exhaust system plays a crucial role in an engine’s performance. It is responsible for expelling exhaust gases, which can affect engine efficiency and power output. An upgraded exhaust system can enhance airflow, reduce back pressure, and improve sound quality, all of which contribute to increased horsepower.
Components of an Exhaust System
- Headers
- Downpipe
- Mid-pipe
- Cat-back system
- Muffler
Each component of the exhaust system plays a vital role in the overall performance. Upgrading any one of these parts can lead to improvements in horsepower, but a complete system upgrade often yields the best results.
Dyno Testing Results
Several dyno tests have been conducted on the Mitsubishi Eclipse GST equipped with various upgraded exhaust systems. The results consistently show notable horsepower gains, particularly when paired with other performance modifications.
Test Setup
For the purpose of these tests, a stock Mitsubishi Eclipse GST was used as the baseline vehicle. The following modifications were made prior to testing:
- Upgraded headers
- High-flow downpipe
- Performance cat-back exhaust system
- ECU tuning
These upgrades were chosen based on their popularity among the Eclipse community and their potential to maximize performance gains.
Results Overview
The dyno testing revealed impressive results, showcasing a range of horsepower gains depending on the specific exhaust system installed:
- Stock HP: 190
- After upgrade 1: 240 HP (50 HP gain)
- After upgrade 2: 270 HP (80 HP gain)
- After upgrade 3: 290 HP (100 HP gain)
These gains illustrate the significant impact that an upgraded exhaust system can have on the performance of the Eclipse GST.
Factors Influencing Performance Gains
While the dyno results are impressive, several factors can influence the actual performance gains experienced by drivers. Understanding these factors can help enthusiasts make informed decisions when upgrading their vehicles.
1. Quality of Components
The quality of the exhaust components plays a significant role in the overall performance. High-quality materials and design can lead to better airflow and durability.
2. Installation
Proper installation is crucial for maximizing performance gains. Misaligned components or improper fittings can lead to exhaust leaks and reduced efficiency.
3. Supporting Modifications
In many cases, the performance of an upgraded exhaust system is enhanced by other modifications, such as a cold air intake or ECU tuning. These supporting modifications can help to fully realize the potential of the exhaust upgrade.
Conclusion
Upgrading the exhaust system on a Mitsubishi Eclipse GST can yield substantial horsepower gains, as demonstrated by various dyno tests. With potential increases ranging from 50 to 100 horsepower, these upgrades are a worthwhile investment for any enthusiast looking to enhance their vehicle’s performance. As always, it is essential to consider the quality of components, proper installation, and supporting modifications to achieve the best results.