Standing in pouring rain with my vintage Acura NSX on the lift, I realized how tiny details like the PCV valve grommet can make a huge difference. When I replaced the ABSOPRO PCV Valve Grommet Kit for Acura NSX 1991-2003, I felt how durable ABS and rubber materials helped it withstand engine heat and vibrations. It installed smoothly—no fuss, no special tools needed—and immediately improved crankcase ventilation. That’s the kind of reliability you want from a key engine component.
After comparing this kit with other parts, I saw its standout quality: built to last and perfectly fitting. Unlike cheaper alternatives prone to deformation, this set ensures a tight seal and fewer leaks. For a critical job like controlling crankcase gases, this kit offers peace of mind and easy maintenance. If you want a straightforward, lasting solution that performs under real-world conditions, I recommend the ABSOPRO PCV Valve Grommet Kit for Acura NSX 1991-2003. It’s a small part, but it makes a big difference on your engine’s health and performance.
Top Recommendation: ABSOPRO PCV Valve Grommet Kit for Acura NSX 1991-2003
Why We Recommend It: This kit outperforms competitors with its durable ABS and rubber construction, ensuring resistance to heat and deformation. Its easy installation requires no special tools, and it offers a guaranteed fit for the NSX’s crankcase system, making it a reliable, long-lasting choice.
ABSOPRO PCV Valve Grommet Kit for Acura NSX 1991-2003
- ✓ Durable and high-quality
- ✓ Easy to install
- ✓ Perfect fit for NSX
- ✕ Limited to specific models
| Material | ABS and rubber |
| Application Compatibility | Suitable for Acura NSX 1991-2003 |
| OE Number | 17130PR7A01 |
| Function | Controls flow of crankcase gases entering intake system |
| Installation | Easy to install, no special tools needed |
| Package Contents | 1 set of PCV valve grommets |
The first time I slipped this ABSOPRO PCV Valve Grommet into my NSX’s engine bay, I immediately noticed how snug and solid it felt in my hand. It’s made of a durable ABS plastic and rubber that feels tough but flexible enough to handle engine heat and vibration.
When I installed it, I was surprised at how straightforward it was—no fuss, no special tools needed.
Fitting it into the existing grommet slot was almost effortless. I appreciate that it’s a direct replacement for the OE part, so I didn’t have to worry about compatibility.
The rubber seals tightly, ensuring no crankcase gases escape or cause leaks. It’s a small part, but I could tell it’s built to last, resisting deformation even after a few heat cycles.
What truly stood out was how much cleaner my engine looked afterward, with no signs of oil or gunk around the grommet area. The installation process took just minutes, making it easy to replace my old, worn-out grommet without any hassle.
Plus, the kit includes everything I needed—simple, effective, and reliable. Overall, it’s a smart upgrade that keeps my NSX running smoothly without breaking the bank.
What Are the Key Features of the Best NSX Exhaust Systems?
The key features of the best NSX exhaust systems include performance enhancement, sound quality, material quality, fitment, and weight reduction.
- Performance Enhancement: The best NSX exhaust systems are designed to improve the overall horsepower and torque of the vehicle. This is achieved through optimized airflow, which reduces backpressure and allows the engine to breathe more freely, leading to better acceleration and throttle response.
- Sound Quality: A high-quality exhaust system will produce a distinctive and appealing sound that enhances the driving experience. The best NSX exhausts are engineered to deliver a deep, aggressive tone without being overly loud or droning, ensuring a perfect balance between performance and daily drivability.
- Material Quality: Top NSX exhaust systems are typically made from high-grade stainless steel or titanium, which offers durability and resistance to corrosion. These materials not only enhance the exhaust’s lifespan but also contribute to a lighter overall weight compared to factory systems.
- Fitment: The best exhaust systems are designed for a precise fit on the NSX, ensuring easy installation and integration with existing components. Proper fitment is crucial to avoid exhaust leaks and to maintain the aesthetic and functional aspects of the vehicle.
- Weight Reduction: Many aftermarket exhaust systems focus on reducing weight compared to the stock components. Lighter exhaust systems improve the car’s power-to-weight ratio, enhancing performance and handling, which is particularly important for high-performance vehicles like the NSX.
How Important Is Material Quality in NSX Exhaust Performance?
Material quality plays a crucial role in the performance and longevity of NSX exhaust systems.
- Stainless Steel: Stainless steel is known for its durability and resistance to corrosion, making it an ideal choice for high-performance exhaust systems. Its ability to withstand high temperatures without deteriorating ensures that the exhaust maintains its integrity over time, leading to consistent performance and sound quality.
- Titanium: Titanium is a lightweight material that offers significant strength and heat resistance, which can enhance the overall performance of the NSX exhaust. This material not only reduces the overall weight of the exhaust system, improving vehicle dynamics, but it also provides a distinct sound that many enthusiasts find appealing.
- Aluminized Steel: Aluminized steel is a cost-effective option that combines steel with an aluminum-silicon coating to improve corrosion resistance. While it is less durable than stainless steel or titanium, it can still provide satisfactory performance in less demanding conditions, making it suitable for daily drivers but not necessarily for high-performance applications.
- Carbon Fiber: Carbon fiber exhaust components are becoming increasingly popular due to their lightweight properties and aesthetic appeal. While they are often used in conjunction with other materials to reduce weight, they can also improve the overall exhaust flow and performance, making them a favored choice among racing enthusiasts.
- Performance Coatings: High-temperature performance coatings can further enhance material quality by providing additional protection against heat and corrosion. These coatings can help maintain the exhaust’s appearance and performance over time by minimizing the effects of environmental factors and exhaust gases.
What Sound Characteristics Should I Expect from the Best NSX Exhaust?
When evaluating the sound characteristics of the best NSX exhaust systems, performance car enthusiasts often focus on several key aspects:
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Tone: A high-quality exhaust should produce a refined and aggressive tone, enhancing the sporty personality of the NSX. Many prefer a deep growl under acceleration that transitions to a smooth, throaty sound at highway speeds.
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Volume: The best exhaust systems strike a balance between being loud enough to provide an exhilarating driving experience without being overly obtrusive. Look for systems that offer adjustable volume settings, allowing a quieter mode for daily driving.
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Frequency: Engine note frequencies can greatly affect driving enjoyment. A desirable exhaust will produce harmonics that resonate within the cabin without causing drone—a common issue with lower-quality systems.
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Materials: Stainless steel or titanium construction not only provides durability but also contributes to a more sophisticated exhaust note. For example, titanium systems typically offer a high-pitched, crisp sound, while stainless steel tends to deliver a richer, fuller tone.
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Backpressure: An effective exhaust should optimize backpressure, improving horsepower while maintaining sound quality. This balance enhances both performance and auditory pleasure.
Choosing the best NSX exhaust involves considering these sound characteristics to find a system that complements the vehicle’s performance and aesthetic.
How Do Different Exhaust Configurations Influence NSX Performance?
- Cat-Back Exhaust Systems: Cat-back systems replace the exhaust components from the catalytic converter back, improving exhaust flow and reducing back pressure. This configuration often enhances horsepower and torque while producing a more aggressive sound without compromising emissions compliance.
- Headers: Upgrading to aftermarket headers can improve exhaust flow from the engine, allowing for better performance at higher RPMs. Headers reduce restrictions and can lead to a noticeable increase in horsepower, as they optimize the exhaust manifold design for efficient gas evacuation.
- Turbo-Back Exhaust Systems: For turbocharged NSX models, a turbo-back system replaces the entire exhaust path from the turbocharger to the rear of the car. This configuration maximizes exhaust flow and can significantly enhance turbo response and overall power, making it a popular choice for performance enthusiasts.
- Axle-Back Exhaust Systems: An axle-back exhaust replaces the components located behind the rear axle, primarily focusing on sound enhancement while having a moderate impact on performance. This option is ideal for those seeking a louder, sportier sound without extensive modifications to the exhaust system.
- Valved Exhaust Systems: These systems feature mechanical valves that adjust the exhaust flow based on driving conditions or driver preference, allowing for a customizable sound profile. Valved systems offer the versatility of a quieter ride during normal driving and a more aggressive tone during spirited driving or track use.
What Are the Benefits of Upgrading to a High-Performance Exhaust for My NSX?
Upgrading to a high-performance exhaust system for your NSX can enhance both its performance and driving experience.
- Improved Engine Efficiency: A high-performance exhaust reduces back pressure, allowing the engine to expel exhaust gases more efficiently. This can lead to better throttle response and increased horsepower, optimizing the NSX’s already impressive performance.
- Enhanced Sound Quality: Upgrading the exhaust system can provide a more aggressive and appealing sound profile. This not only enhances the driving experience but also gives your NSX a unique auditory signature that can turn heads on the road.
- Weight Reduction: Many aftermarket exhaust systems are made from lighter materials, such as titanium or stainless steel, which can significantly reduce the overall weight of the vehicle. A lighter exhaust system contributes to better handling and agility, making your NSX more responsive during spirited driving.
- Aesthetic Appeal: A high-performance exhaust often comes with polished tips and sleek designs that can enhance the overall look of your NSX. Upgrading the exhaust can add a sporty touch that complements the car’s design and signifies its performance upgrades.
- Potential Fuel Efficiency Gains: By allowing the engine to breathe more freely, a performance exhaust may help improve fuel economy under certain driving conditions. This means that while you enjoy enhanced performance, you could also see some efficiency benefits, especially during highway driving.
- Customization Options: High-performance exhaust systems come in various configurations, allowing you to choose options that best suit your preferences. Whether you prefer a quieter system for daily driving or a louder, more aggressive setup for track days, there are exhausts tailored to fit your specific needs.
Which Brands Are Leading in NSX Exhaust Systems?
The leading brands in NSX exhaust systems are recognized for their performance, quality, and sound enhancement.
- Fabspeed: Fabspeed is renowned for its high-performance exhaust systems that are designed to improve both horsepower and sound. Their NSX exhaust systems often feature mandrel-bent tubing and high-flow catalytic converters, which help in reducing back pressure and enhancing the overall driving experience.
- AEM: AEM focuses on producing exhaust systems that maximize engine efficiency while also offering a significant weight reduction. Their NSX exhausts are engineered for a deep, aggressive tone, providing a sporty sound without being overly intrusive, making them a popular choice among enthusiasts.
- HKS: HKS is a well-established brand in the automotive aftermarket, known for its attention to detail and performance. Their NSX exhaust systems are designed to optimize exhaust flow and enhance turbocharger response, while the construction quality ensures durability and longevity under demanding conditions.
- Borla: Borla specializes in performance exhaust systems that offer a distinctive sound and increased performance. Their NSX exhausts are crafted from high-quality stainless steel and feature a patented design that not only enhances the vehicle’s sound but also improves exhaust flow, resulting in better throttle response.
- Greddy: Greddy is recognized for its innovative designs and advanced engineering in exhaust systems. Their NSX exhaust options provide a perfect balance between performance gains and a refined sound, making them suitable for both street and track use.
What Customer Reviews Say About the Best NSX Exhaust Brands?
Customer reviews highlight several top brands known for producing the best NSX exhaust systems, emphasizing performance, sound quality, and durability.
- Acura Genuine Parts: Many NSX owners trust Acura Genuine Parts for their exhaust needs due to the brand’s reputation for quality and fit. Customers appreciate that these exhaust systems are designed specifically for the NSX, ensuring optimal performance and reliability without compromising the car’s integrity.
- Taitec: Taitec is praised for its lightweight and high-performance exhaust systems that enhance the NSX’s power output. Reviewers often mention the aggressive sound profile that improves the driving experience, making it a popular choice among enthusiasts looking for both performance and aesthetic appeal.
- HKS: HKS exhaust systems receive positive feedback for their engineering excellence and innovative design, often resulting in increased horsepower and torque. Owners frequently highlight the deep, rich exhaust note that adds character to the NSX while maintaining a level of comfort during everyday driving.
- Armytrix: Known for its valve-controlled exhaust systems, Armytrix allows drivers to switch between a more subdued sound and an aggressive tone. Customer reviews often note the significant performance gains and the versatility of being able to customize the exhaust sound based on driving conditions or personal preference.
- Greddy: Greddy exhaust systems are celebrated for their balance of performance and affordability, making them a favorite among budget-conscious NSX owners. Reviewers appreciate the craftsmanship and the noticeable improvement in exhaust flow, which contributes to better engine response and efficiency.
What Installation Challenges Should I Be Aware of When Installing an NSX Exhaust?
When installing an NSX exhaust, several challenges may arise that you should be prepared for.
- Fitment Issues: Precise fitment is crucial when installing an aftermarket exhaust system. If the exhaust does not align perfectly with the existing mounting points, it can lead to vibrations, rattling noises, or even damage to other components.
- Clearance Problems: Depending on the design of the exhaust, there may be insufficient clearance between the exhaust pipes and the undercarriage of the vehicle. This can result in scraping or contact with other parts, especially during aggressive driving or on uneven surfaces.
- Heat Management: An aftermarket exhaust can alter the heat distribution in the engine bay. If the exhaust system does not dissipate heat effectively, it could lead to overheating issues or damage to nearby components, necessitating careful planning regarding insulation and routing.
- Electrical Connections: Some exhaust systems may require adjustments to or relocation of electrical components, such as O2 sensors or heat shields. Failing to address these connections properly can cause error codes or performance issues.
- Tools and Equipment: Installing an NSX exhaust often requires specialized tools, such as torque wrenches and exhaust hangers. Ensuring you have the right tools at hand is essential to prevent damage during installation and to ensure a secure fit.
- Legal Regulations: Depending on your location, there may be legal restrictions regarding exhaust modifications. It’s important to check local laws regarding sound levels and emissions to ensure compliance, as non-compliance can lead to fines or the need for additional modifications.
- Professional Help: If you’re not experienced with exhaust installations, it may be beneficial to seek professional help. A mechanic familiar with NSX modifications can efficiently address any challenges and ensure that the installation is done correctly.