What is an Exhaust System Upgrade?

An exhaust system upgrade involves replacing parts of your vehicle's exhaust system with aftermarket components designed to improve performance, sound, and sometimes fuel efficiency. Common upgrades include cat-back, axle-back, and header-back systems.

Why Should You Get an Exhaust System Upgrade?

1. Increased Horsepower and Torque: Upgrading your exhaust system can free up horsepower and torque by reducing back pressure and improving exhaust flow.
2. Enhanced Sound: Aftermarket exhaust systems can provide a deeper, more aggressive exhaust note, enhancing the driving experience.
3. Improved Fuel Efficiency: More efficient exhaust flow can lead to modest gains in fuel economy.
4. Weight Reduction: Many aftermarket systems use lightweight materials like stainless steel or titanium, reducing the vehicle’s overall weight.

How Does an Exhaust System Upgrade Work?

Factory exhaust systems are designed to reduce noise and emissions, often at the expense of performance. Aftermarket systems are engineered to optimize exhaust flow and reduce back pressure. Key components include:

1. Headers: Replace stock exhaust manifolds to improve the flow of exhaust gases from the engine cylinders.
2. Cat-Back Systems: Replace the exhaust system from the catalytic converter back to the exhaust tip, often using larger diameter pipes and high-flow mufflers.
3. Axle-Back Systems: Replace the exhaust components from the rear axle to the exhaust tip, primarily affecting sound and slightly improving flow.
4. Mufflers and Resonators: Designed to enhance sound quality and reduce noise without restricting exhaust flow.

Case Studies and Real-World Examples

A 2016 Ford Mustang GT with a Borla cat-back exhaust system showed a 15 horsepower increase and a more aggressive exhaust note. Installation took about 2 hours with basic tools. Similarly, a 2018 Volkswagen Golf R with a MagnaFlow cat-back system demonstrated a 10 horsepower gain and improved throttle response, providing a deeper exhaust note and reduced turbo lag.

Popular Brands

• Borla: Known for their distinctive sound and high-quality construction. Borla at JM Auto Racing
• MBRP: Offers a balance of performance and sound. MBRP at JM Auto Racing
• Fabspeed: Famous for their deep, and exotic exhaust tones. Fabspeed at JM Auto Racing
• Tomei: Full titanium and powerful exhaust systems. Tomei at JM Auto Racing
• APEXI: Japanese made with a melodic powerful sound. Apexi at JM Auto Racing

Installation and Maintenance

Installing an exhaust system can be a DIY project for those with basic mechanical skills. Most systems come with detailed instructions and require standard tools. Regular maintenance involves checking for leaks and ensuring all components are securely fastened.

Conclusion

Upgrading your vehicle’s exhaust system can significantly enhance performance, sound, and even fuel efficiency. By reducing back pressure and optimizing exhaust flow, these systems can increase horsepower, torque, and throttle response. With a wide range of options available, there’s an exhaust system for every performance need and budget.