The Scion FR-S is a popular sports car known for its lightweight design, responsive handling, and rear-wheel-drive layout. Enthusiasts often seek ways to enhance its performance, sound, and overall driving experience, and one of the most impactful upgrades is the exhaust system. Installing a performance exhaust on a Scion FR-S can significantly alter the car’s sound profile, improve horsepower and torque, and even contribute to a more engaging driving experience. With a variety of options available, from cat-back systems to headers and mufflers, understanding the benefits, considerations, and popular choices is crucial for owners who want to maximize their FR-S’s potential.
Why Upgrade the Exhaust on a Scion FR-S
Upgrading the exhaust on a Scion FR-S is a common modification among automotive enthusiasts due to its direct impact on both performance and aesthetics. Stock exhaust systems are often designed with noise regulations, cost efficiency, and emissions compliance in mind, which can limit performance and sound quality. By replacing or modifying the exhaust system, drivers can achieve a freer-flowing setup that enhances engine efficiency, produces a more aggressive tone, and complements other performance upgrades.
Performance Gains
One of the primary reasons to upgrade an exhaust system is to improve performance. Performance exhausts reduce backpressure, allowing exhaust gases to exit the engine more efficiently. This improved flow can increase horsepower and torque, particularly at higher RPMs. While gains vary depending on the specific exhaust system and additional modifications, many Scion FR-S owners notice a smoother power delivery and better throttle response after installation.
Enhanced Sound
The exhaust sound is a defining characteristic of a sports car, and the Scion FR-S is no exception. Stock exhaust systems tend to be quiet, especially at lower speeds, to comply with regulations and appeal to a broader audience. Aftermarket exhaust systems can provide a deeper, more aggressive growl that reflects the FR-S’s sporty character. Drivers can choose from options that range from subtle enhancements to loud, attention-grabbing tones, depending on personal preference and local noise regulations.
Types of Exhaust Systems for Scion FR-S
There are several types of exhaust upgrades available for the Scion FR-S, each offering different benefits and characteristics. Choosing the right type depends on the desired performance gains, sound profile, and budget.
Cat-Back Exhaust
A cat-back exhaust system replaces the piping from the catalytic converter to the exhaust tip, including the muffler. This type of system is popular because it generally provides noticeable performance gains and improved sound without requiring extensive modifications. Cat-back systems are relatively easy to install and often retain emissions compliance, making them a practical choice for daily-driven FR-S vehicles.
Axle-Back Exhaust
Axle-back exhausts replace only the rear section of the exhaust, typically from the rear axle to the exhaust tip. While this modification has a smaller impact on performance compared to a full cat-back system, it can still enhance sound and aesthetics. Axle-back systems are often more affordable and easier to install, making them an attractive option for drivers seeking improved sound without major engine modifications.
Headers and Mid-Pipes
For those seeking maximum performance, upgrading the headers and mid-pipes can further reduce exhaust restrictions and increase power output. Long-tube headers and high-flow mid-pipes can dramatically improve exhaust scavenging, allowing the engine to breathe more efficiently. However, these modifications may require additional tuning and can affect emissions compliance, so careful consideration is necessary before installation.
Popular Exhaust Brands for Scion FR-S
Several reputable brands offer performance exhaust systems specifically designed for the Scion FR-S. Each brand provides unique sound characteristics, materials, and design features. Choosing the right brand depends on performance goals, budget, and personal preference.
Invidia
Invidia is a well-known brand among FR-S enthusiasts, offering cat-back and axle-back exhaust systems that deliver aggressive sound and performance improvements. Many Invidia systems feature stainless steel construction and high-quality mufflers that balance tone and resonance, making them popular for both daily driving and track use.
HKS
HKS exhausts are recognized for precision engineering and performance-oriented designs. Their systems often provide a more refined, high-pitched tone while optimizing exhaust flow. HKS is favored by drivers who want a balance of performance gains and sophisticated sound characteristics.
Greddy
Greddy offers exhaust systems that emphasize a sporty and aggressive tone, often targeting enthusiasts who enjoy a louder exhaust experience. Greddy systems typically use stainless steel construction for durability and enhanced aesthetics, providing both visual and auditory appeal.
Fujitsubo
Fujitsubo is another top brand, particularly popular in the tuner community. Their exhaust systems are known for high-quality craftsmanship, smooth sound, and efficient exhaust flow. Fujitsubo offers both cat-back and axle-back configurations, catering to various performance and sound preferences.
Installation Considerations
Installing an aftermarket exhaust system on a Scion FR-S requires careful planning to ensure proper fitment, performance, and compliance with regulations. While some systems can be installed with basic tools, others may require professional installation to avoid leaks, rattling, or tuning issues.
Tuning and ECU Adjustments
After significant exhaust modifications, especially when combined with headers or high-flow mid-pipes, ECU tuning may be necessary to optimize performance and prevent engine issues. Proper tuning ensures the engine runs efficiently and takes full advantage of the reduced exhaust restrictions.
Material and Durability
Exhaust materials, such as stainless steel or titanium, influence durability, weight, and sound quality. Stainless steel is durable and resistant to corrosion, making it a common choice for FR-S owners. Titanium offers lightweight performance benefits and a distinct sound but tends to be more expensive.
Legal and Emissions Compliance
Before purchasing or installing an aftermarket exhaust, owners should check local noise and emissions regulations. Some exhaust systems may not be street-legal in certain areas, especially those with louder tones or modified catalytic components.
Upgrading the exhaust system on a Scion FR-S is a popular way to enhance performance, sound, and overall driving enjoyment. From cat-back and axle-back systems to full headers and mid-pipes, there are options to suit a range of preferences and budgets. Leading brands like Invidia, HKS, Greddy, and Fujitsubo provide high-quality solutions that improve exhaust flow, create aggressive tones, and complement other performance modifications. Proper installation, tuning, and consideration of legal requirements are essential to maximize the benefits of an aftermarket exhaust. For Scion FR-S enthusiasts seeking a more thrilling driving experience, an upgraded exhaust system is a transformative modification that combines performance, style, and auditory excitement.