Introduction to Exhaust Upgrades for the 2019 Acura NSX

The 2019 Acura NSX is a marvel of modern automotive engineering, seamlessly blending hybrid technology with a sleek, high-performance design. One of the most popular and effective modifications for this supercar is upgrading the performance exhaust system. A well-chosen exhaust upgrade not only enhances the NSX's sound and aesthetics but can also improve power output and driving dynamics. This guide will walk you through everything you need to know about choosing the right performance exhaust upgrade for your 2019 Acura NSX.

Understanding the Stock Exhaust System on the 2019 Acura NSX

Before diving into aftermarket options, it's essential to understand the baseline — the stock exhaust system. The 2019 NSX features a sophisticated exhaust setup designed to balance performance, emissions, and noise regulations. It uses a dual exhaust system with active valves that adjust the exhaust flow and sound depending on the driving mode, from quiet and refined in Comfort mode to aggressive and sporty in Sport+ mode.

The stock exhaust is built with lightweight materials such as titanium and stainless steel, contributing to the car's low overall weight and optimal balance. While the factory system offers a refined sound and respectable performance, many owners seek aftermarket upgrades to unlock a more thrilling auditory experience and potential power gains.

Benefits of Upgrading the Performance Exhaust on the NSX

  • Enhanced Sound Quality: One of the primary reasons for upgrading the exhaust is to improve the engine’s sound. Aftermarket exhausts can provide a deeper, louder, and more aggressive tone that better matches the NSX's supercar character.
  • Increased Horsepower and Torque: Performance exhaust systems typically reduce exhaust backpressure and improve gas flow, which can help the engine breathe better. This can translate to measurable gains in horsepower and torque, especially when combined with other performance modifications.
  • Weight Reduction: Many aftermarket exhausts are made from lighter materials such as titanium or carbon fiber, which reduce the overall weight of the vehicle and improve handling and acceleration.
  • Improved Aesthetics: Upgraded exhaust systems often feature eye-catching designs and finishes, such as carbon fiber tips or unique muffler shapes, which enhance the visual appeal of the NSX.
  • Customization Options: Many manufacturers offer exhaust systems with adjustable valves or modular designs, allowing drivers to tailor the sound and performance to their preferences.

Key Considerations When Choosing a Performance Exhaust for the NSX

Material Quality and Durability

The material of the exhaust system greatly influences its weight, durability, and resistance to corrosion. The most common materials for performance exhausts include:

  • Stainless Steel: Offers a good balance between cost, durability, and weight. It is resistant to corrosion and widely used in many aftermarket exhausts.
  • Titanium: Much lighter than stainless steel and extremely strong, titanium exhausts also develop a unique blue/purple patina over time. They tend to be more expensive but offer excellent performance gains and weight savings.
  • Inconel: A high-performance alloy known for extreme heat resistance, often used in racing applications but rarely in street-legal exhausts due to cost.

Sound is subjective, and every driver will have different preferences. Some may want a loud, aggressive exhaust note, while others prefer a subtle growl. When selecting an exhaust, consider:

  • The sound clips or videos provided by manufacturers or owners.
  • Local noise ordinances and regulations, as excessively loud exhausts may not be street-legal.
  • The presence of active valve technology, which allows you to modulate sound levels.

Compatibility and Installation

Ensure the exhaust system you choose is specifically designed for the 2019 Acura NSX or is known to fit without extensive modifications. Some exhausts require professional installation and tuning to achieve optimal performance. Additionally, check if the upgrade affects the vehicle’s warranty or emissions certification.

1. Akrapovic Evolution Line Titanium Exhaust

Akrapovic is renowned for producing premium performance exhausts. Their Evolution Line Titanium Exhaust for the NSX is crafted from lightweight titanium, reducing weight by approximately 15 pounds compared to the stock system. The design integrates active valves that can be controlled via the NSX’s driving modes, offering an aggressive yet refined sound. Many users report noticeable gains in throttle response and an exhilarating exhaust note that enhances the driving experience.

2. Armytrix Valvetronic Exhaust System

The Armytrix system is popular for its fully valvetronic design, allowing drivers to adjust the exhaust sound via a smartphone app. This system is made from high-quality stainless steel with carbon fiber tips and offers a deep, aggressive tone on demand. The ability to switch between quiet and loud modes makes it suitable for both daily driving and track days. Installation requires professional tuning to ensure the hybrid system and ECU remain in harmony.

3. Remus Sport Exhaust

Remus is a European brand known for its balance of sound and performance. Their sport exhaust for the NSX offers a deep growl with improved airflow, crafted from stainless steel with a polished finish. While not as lightweight as titanium options, Remus exhausts are often praised for their durability and distinctive sound character.

4. Stillen Performance Exhaust System

Stillen provides a more budget-friendly option without compromising quality. Their stainless steel system improves exhaust flow and produces a sportier sound that is louder than stock but not overwhelming. Stillen exhausts are also designed to be a direct bolt-on replacement, making installation easier for enthusiasts who prefer a DIY approach.

Installation and Maintenance Tips

Upgrading your NSX’s exhaust system requires careful installation to ensure optimal performance and avoid damage to other components. Here are some tips:

  • Professional Installation: Many performance exhausts for the NSX require professional installation due to the complexity of the hybrid powertrain and exhaust routing.
  • ECU Tuning: Some exhaust upgrades may require ECU remapping to maximize power gains and maintain smooth operation.
  • Regular Inspection: Periodically check exhaust mounts, clamps, and heat shields for wear or loosening to prevent rattles or damage.
  • Cleaning: Use appropriate cleaning products for exhaust tips, especially if they are made of titanium or carbon fiber, to maintain their aesthetic appeal.

Additional Performance Upgrades to Complement Your Exhaust System

To fully unlock the potential of your NSX with a new exhaust, consider pairing it with other modifications such as:

  • High-Flow Air Intake: Improves air intake efficiency, complementing the exhaust for better combustion.
  • ECU Remapping or Tuning: Optimizes fuel and ignition timing to work with the new exhaust and intake systems.
  • Suspension Upgrades: Enhances handling to match the increased performance capabilities.
  • Lightweight Wheels: Reduces unsprung weight for improved acceleration and braking.

Conclusion

Upgrading the performance exhaust on your 2019 Acura NSX is one of the most rewarding modifications you can make. It enhances the car’s sound, performance, and aesthetic appeal, allowing you to tailor the driving experience to your preferences. When choosing the right exhaust system, consider factors such as material, sound profile, compatibility, and budget. Whether you opt for a premium titanium system like Akrapovic or a versatile valvetronic setup from Armytrix, a well-chosen exhaust upgrade will elevate your NSX’s character and performance to exciting new heights.

For more detailed reviews and installation guides, explore our other articles on Acura Performance and Modifications.