Upgrading the Scion Fr-s Exhaust System: from Stock to 15 Hp More with Greddy

The Scion FR-S is a popular sports car known for its lightweight design and excellent handling. However, many enthusiasts seek to enhance its performance further. One of the most effective upgrades is the exhaust system. Upgrading to a GReddy exhaust system can yield an impressive increase in horsepower, potentially adding up to 15 HP over the stock system.

Understanding the Importance of an Exhaust System

The exhaust system plays a crucial role in a vehicle’s performance. It is responsible for expelling the gases produced during combustion, and its design can significantly impact engine efficiency and power output. A well-designed aftermarket exhaust system can help improve airflow, reduce back pressure, and enhance the overall sound of the vehicle.

Benefits of Upgrading to a GReddy Exhaust System

  • Increased Horsepower: GReddy exhaust systems are engineered to maximize airflow, resulting in a noticeable increase in horsepower.
  • Improved Sound: The GReddy exhaust offers a deeper, more aggressive sound that enhances the driving experience.
  • Lightweight Materials: Constructed from high-quality materials, GReddy exhausts are typically lighter than stock systems, contributing to overall performance.
  • Enhanced Aesthetics: The sleek design of GReddy exhausts adds a sporty look to the Scion FR-S.
  • Easy Installation: GReddy exhaust systems are designed for straightforward installation, often requiring no modifications to the vehicle.

Installation Process

Installing a GReddy exhaust system on your Scion FR-S is a manageable task for those with basic mechanical skills. Below is a step-by-step guide to help you through the process.

Tools Required

  • Socket wrench set
  • Jack and jack stands
  • Torque wrench
  • Safety glasses
  • Gloves

Step-by-Step Installation

  • Prepare the Vehicle: Park the Scion FR-S on a level surface and engage the parking brake. Use a jack to lift the rear of the vehicle and secure it with jack stands.
  • Remove the Stock Exhaust: Locate the bolts connecting the stock exhaust to the exhaust manifold and remove them using a socket wrench. Carefully detach the exhaust system from the hangers.
  • Install the GReddy Exhaust: Position the GReddy exhaust in place and attach it to the exhaust manifold. Ensure all connections are secure and tighten the bolts to the manufacturer’s specifications using a torque wrench.
  • Reattach Hangers: Reinstall the exhaust hangers to ensure the system is properly supported.
  • Check for Leaks: Start the engine and listen for any unusual sounds or leaks. If everything sounds good, lower the vehicle and take it for a test drive.

Performance Results

After upgrading to a GReddy exhaust system, many drivers report a significant boost in performance. The increase of up to 15 HP can be felt during acceleration, and the enhanced sound adds to the overall driving experience. The combination of improved airflow and reduced weight allows the Scion FR-S to perform better on both the street and the track.

Conclusion

Upgrading the exhaust system on your Scion FR-S to a GReddy model is a worthwhile investment for those looking to enhance performance and driving enjoyment. With the potential for a 15 HP increase, improved sound, and lightweight construction, this upgrade can transform your driving experience. Whether you’re a casual driver or a dedicated enthusiast, a GReddy exhaust system is a step towards unlocking the full potential of your Scion FR-S.