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The Subaru WRX has long been a favorite among car enthusiasts, particularly for its turbocharged performance and rally-inspired design. Upgrading the exhaust system is one of the most popular modifications for WRX owners looking to enhance their vehicle’s power and sound. In this article, we will explore the Stage 2 power gains achieved with the Invidia N1 turbo back exhaust system, highlighting the before and after dyno results.
Understanding Stage 2 Modifications
Stage 2 modifications typically involve a combination of performance upgrades that enhance the engine’s efficiency and power output. For the WRX, a Stage 2 setup often includes:
- Upgraded turbocharger
- High-flow fuel injectors
- Performance intake system
- Aftermarket exhaust system
These modifications work together to increase airflow, improve combustion, and ultimately boost horsepower and torque. The Invidia N1 turbo back exhaust system is a key component in achieving these gains.
Introducing the Invidia N1 Turbo Back Exhaust
The Invidia N1 turbo back exhaust is designed specifically for the Subaru WRX, featuring a 3-inch diameter piping that allows for optimal exhaust flow. This system is known for its lightweight construction and aggressive sound, making it a popular choice among performance enthusiasts.
Key features of the Invidia N1 turbo back exhaust include:
- High-quality stainless steel construction
- Mandrel-bent piping for smooth airflow
- Dual tip design for enhanced aesthetics
- Easy installation with all necessary hardware included
Before Dyno Results
Before installing the Invidia N1 turbo back exhaust, we conducted a baseline dyno test on a stock WRX with Stage 1 modifications. The results provided a clear picture of the vehicle’s performance prior to the exhaust upgrade.
- Peak horsepower: 250 hp
- Peak torque: 250 lb-ft
These results reflect a typical performance level for a stock WRX with basic tuning. The goal was to assess the improvements following the installation of the Invidia exhaust system.
After Dyno Results
After the installation of the Invidia N1 turbo back exhaust, we conducted a second dyno test to measure the performance gains. The results were impressive and demonstrated the effectiveness of the exhaust system in enhancing power output.
- Peak horsepower: 290 hp
- Peak torque: 280 lb-ft
The increase in horsepower and torque illustrates the significant impact of the Invidia N1 turbo back exhaust on the WRX’s performance. With a gain of 40 hp and 30 lb-ft of torque, the exhaust system proved to be a valuable upgrade for Stage 2 modifications.
Benefits of Upgrading to the Invidia N1 Exhaust
Beyond the raw power gains, there are several additional benefits to upgrading to the Invidia N1 turbo back exhaust:
- Improved Sound: The Invidia N1 offers a deep, aggressive tone that enhances the driving experience.
- Weight Reduction: The lightweight design reduces overall vehicle weight, contributing to better performance.
- Enhanced Aesthetics: The dual tip design adds a sporty look to the rear of the WRX.
- Increased Resale Value: Quality performance upgrades can increase the vehicle’s resale value.
Conclusion
The Invidia N1 turbo back exhaust is an excellent choice for Subaru WRX owners looking to enhance their vehicle’s performance. With substantial power gains demonstrated in the before and after dyno results, this exhaust system not only improves horsepower and torque but also enhances the overall driving experience through improved sound and aesthetics. For those considering Stage 2 modifications, the Invidia N1 is a worthy investment that delivers impressive results.