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The Subaru WRX is a beloved vehicle among car enthusiasts, known for its performance and handling. One popular modification for boosting its power is the installation of an aftermarket exhaust system. In this article, we will explore the impact of a 3.5” Invidia N1 Turbo Back Exhaust on the horsepower of your Subaru WRX.
Understanding Exhaust Systems
An exhaust system plays a crucial role in the overall performance of a vehicle. It helps in expelling exhaust gases from the engine, reducing back pressure, and improving airflow. A high-performance exhaust system can enhance engine efficiency and power output.
The Invidia N1 Turbo Back Exhaust
The Invidia N1 Turbo Back Exhaust is designed specifically for Subaru WRX models. It features a 3.5-inch diameter piping that allows for increased exhaust flow compared to the stock exhaust system. This larger diameter can lead to significant performance gains.
Key Features of the Invidia N1 Turbo Back Exhaust
- 3.5-inch diameter piping for improved flow
- Mandrel-bent construction for smooth exhaust flow
- High-quality stainless steel for durability
- Lightweight design to reduce overall weight
- Aggressive sound profile for a sporty feel
How Horsepower is Measured
Horsepower is a measure of the engine’s power output. It can be influenced by various factors, including modifications like exhaust systems. When measuring horsepower gains from an exhaust upgrade, it is typically done using a dynamometer.
Expected Horsepower Gains with the Invidia N1 Exhaust
Many Subaru WRX owners report significant horsepower gains after installing the Invidia N1 Turbo Back Exhaust. On average, users can expect an increase in horsepower ranging from 15 to 25 horsepower, depending on other modifications and tuning.
Factors Influencing Horsepower Gains
- Engine tuning: Proper tuning is essential to maximize gains.
- Additional modifications: Upgrades like a cold air intake can further enhance performance.
- Vehicle condition: A well-maintained engine will perform better.
Installation Process
Installing the Invidia N1 Turbo Back Exhaust can be done at home with the right tools, although professional installation is recommended for the best results. The installation process typically involves removing the stock exhaust system and replacing it with the new one.
Tools Required
- Socket set
- Wrench set
- Jack and jack stands
- Exhaust hanger removal tool
Step-by-Step Installation Guide
- Lift the vehicle and secure it on jack stands.
- Remove the stock exhaust system, starting from the downpipe.
- Install the new Invidia N1 Turbo Back Exhaust, ensuring proper alignment.
- Secure all clamps and hangers.
- Lower the vehicle and start the engine to check for leaks.
Conclusion
The 3.5” Invidia N1 Turbo Back Exhaust is an excellent upgrade for Subaru WRX owners looking to enhance performance. With expected horsepower gains between 15 to 25 horsepower, it provides a noticeable improvement in power and sound. Proper installation and tuning are key to maximizing these benefits.