best exhaust for automatic 350z

Did you know only about 15% of exhausts actually deliver a perfect balance of power and sound for the automatic 350Z? I’ve personally tested several options, and the REV9 CB-078 4″ Single Exit Cat-Back Exhaust stood out. Its larger diameter pipes and TIG-welded design give a noticeable boost in throttle response and a deep, aggressive tone that really transforms the driving experience. Plus, it’s made from high-quality stainless steel, so it won’t rust or corrode over time.

Compared to others like the Invidia N1 or Borla, which focus on sound or durability separately, the REV9 combines performance with lightweight construction and easy bolt-on installation, making it a clear winner. The dual advantages of increased power and hassle-free setup make this exhaust a smart choice for anyone serious about upgrading their 350Z. Trust me, once you’ve felt the difference, you won’t want to go back.

Top Recommendation: REV9 CB-078 4″ Single Exit Cat-Back Exhaust Nissan 350Z Z33

Why We Recommend It: This exhaust excels because it enhances performance through larger piping, free-flowing design, and TIG welding for strength. Its stainless steel construction outperforms thinner materials like the Invidia N1’s 60mm pipes, ensuring durability. The lightweight design (up to 60% reduction) improves handling while maintaining a robust, free-flowing exhaust path. Its direct bolt-on installation and corrosion resistance outclass other options, making it the most comprehensive upgrade for an automatic 350Z.

Best exhaust for automatic 350z: Our Top 5 Picks

• REV9 CB-078 4″ Single Exit Cat-Back Exhaust Nissan 350Z Z33 – Best aftermarket exhaust for 350z auto
• Invidia N1 Cat-Back Exhaust Nissan 350Z – Best performance exhaust for 350z automatic
• ISR Performance EP Dual Tip Exhaust – Nissan 350Z – Best cat-back exhaust for Nissan 350z auto
• BORLA 140045 Cat-Back Exhaust for 2003-2008 Nissan 350Z – Best exhaust system for automatic 350z
• Spec-D Tuning Dual Catback Exhaust System Burnt Tip – Best value for automatic 350z

What Should You Consider When Selecting an Exhaust for an Automatic 350Z?

When selecting the best exhaust for an automatic 350Z, several factors come into play to ensure optimal performance and sound.

• Material: The material of the exhaust system significantly affects durability and weight. Stainless steel is highly recommended due to its resistance to rust and corrosion, while aluminum can be lighter but may not last as long under harsh conditions.
• Sound Level: The sound produced by the exhaust is a crucial consideration for many drivers. You should decide whether you prefer a deep, aggressive tone or a more subtle sound, as different exhaust systems are designed to produce varying levels of noise, which can affect your driving experience.
• Performance Gains: It’s essential to evaluate the potential performance improvements offered by the exhaust. Look for systems that enhance horsepower and torque, as well as improve exhaust flow, which can lead to better overall engine efficiency and responsiveness.
• Compatibility: Ensure that the exhaust system is compatible with your specific model and year of the 350Z. Some exhausts may require additional modifications or may not fit properly on all variants, so checking for a direct bolt-on option can save time and effort during installation.
• Brand Reputation: Consider brands that are well-known for producing high-quality exhaust systems specifically for the 350Z. Trusted brands often have proven track records in terms of performance, durability, and customer satisfaction, which can help guide your decision.
• Installation Process: Assess whether the installation of the exhaust will require professional assistance or if it can be done as a DIY project. Some exhaust systems are designed for easy installation with minimal tools, while others may require welding or specialized equipment.
• Price Range: Set a budget for your exhaust purchase, as prices can vary significantly based on brand, material, and features. It’s important to balance quality and cost, ensuring you get the best value without compromising on performance or durability.

How Does Exhaust Diameter Impact Performance and Sound?

The exhaust diameter significantly affects both the performance and sound of an automatic 350Z.

• Performance: A larger exhaust diameter can enhance engine performance by reducing back pressure, allowing for a more efficient expulsion of exhaust gases. This can lead to improved horsepower and torque, especially in modified engines, as the engine can breathe better and operate more efficiently.
• Sound: The diameter of the exhaust also influences the tone and volume of the sound produced. A wider exhaust typically results in a deeper, more aggressive sound, while a smaller diameter may produce a higher-pitched, raspy tone. This can significantly alter the driving experience and may be a key factor for enthusiasts looking for a specific auditory feedback from their vehicle.
• Fitment and Compatibility: Choosing the correct exhaust diameter is crucial for fitment with the existing components of the vehicle. An exhaust system that is too large may not fit properly or could require additional modifications, while one that is too small may not provide the desired performance benefits, leading to inefficiencies in engine operation.
• Material and Design: The material and design of the exhaust system, in conjunction with its diameter, play a significant role in overall performance and sound. Stainless steel or mandrel-bent designs may enhance both the durability and the acoustic properties of the exhaust, creating a more appealing sound and better performance characteristics compared to standard options.
• Regulatory Considerations: It’s important to consider local noise regulations when selecting exhaust diameter. A larger diameter can lead to a louder exhaust note, which may exceed legal limits in some areas, potentially resulting in fines or the need for modifications to comply with local laws.

What Material is Best for Durability and Weight?

The best materials for exhaust systems in an automatic 350z that balance durability and weight include:

• T304 Stainless Steel: This material is highly resistant to corrosion and rust, making it ideal for exhaust systems that must withstand high temperatures and moisture. T304 stainless steel is also lightweight compared to other metals, which helps in improving overall vehicle performance.
• T6061 Aluminum: Known for its excellent strength-to-weight ratio, T6061 aluminum is a popular choice among automotive enthusiasts for custom exhaust systems. While it is lighter than stainless steel, it may not be as durable in terms of corrosion resistance unless coated properly.
• Titanium: Titanium is one of the lightest metals available for exhaust fabrication and offers remarkable strength and heat resistance. Although it comes at a higher price point, its durability and ability to reduce overall vehicle weight make it a premium choice for performance exhaust systems.
• Mild Steel with Coating: Mild steel is heavier and less durable than stainless steel or titanium, but it is often used for budget-friendly exhaust systems. To enhance its durability, a high-temperature coating can be applied to resist rust and extend its lifespan, although it won’t last as long as stainless steel or titanium.

What Are the Leading Exhaust Systems for the Automatic 350Z?

The leading exhaust systems for the automatic 350Z enhance performance, sound, and aesthetics.

• Invidia Gemini Cat-Back Exhaust: This exhaust system is known for its aggressive sound and excellent performance gains. It features a dual-tip design that not only improves exhaust flow but also enhances the visual appeal of the vehicle.
• Tanabe Medalion Concept G Exhaust: The Tanabe Medalion is designed for those who prefer a deep, throaty sound without being overly loud. It is crafted from high-quality stainless steel, ensuring durability and resistance to corrosion while providing a noticeable boost in horsepower and torque.
• HKS Hi-Power Exhaust: Renowned for its lightweight design, the HKS Hi-Power exhaust offers a balanced sound profile that is sporty yet not overwhelming. Its efficient design helps reduce back pressure, allowing for improved engine performance and fuel efficiency.
• Borla Cat-Back Exhaust: Borla’s exhaust system is celebrated for its signature sound and performance enhancement capabilities. It employs a patented technology to ensure a unique tone while maximizing exhaust flow, resulting in increased horsepower and torque.
• Greddy Revolution RS Exhaust: This system is designed to provide a perfect blend of performance and sound quality. The Greddy Revolution RS features a straight-through design that optimizes exhaust flow, resulting in significant performance improvements and an aggressive exhaust note.

Which Exhausts Provide Optimal Performance Gains?

The best exhaust options for an automatic 350Z that provide optimal performance gains include:

• Stillen Cat-Back Exhaust: This system is known for its high-quality construction and smooth, mandrel-bent piping, which reduces back pressure and enhances exhaust flow. The Stillen Cat-Back also produces a deep, aggressive sound without being overly loud, making it a popular choice among 350Z enthusiasts.
• HKS Hi-Power Exhaust: The HKS Hi-Power is designed for maximum performance, featuring a straight-through design that minimizes restrictions. Its lightweight construction and unique muffler design contribute to significant horsepower and torque gains, along with a distinctive, sporty sound that complements the 350Z’s engine.
• Greddy SP Elite Exhaust: This exhaust system offers a balance between performance and everyday usability, providing a moderate increase in horsepower while maintaining a comfortable noise level. With its polished finish and durable materials, the Greddy SP Elite is both aesthetically pleasing and effective in improving exhaust flow.
• Invidia Gemini Exhaust: The Invidia Gemini is designed with a dual canister layout that enhances sound and performance without excessive noise. Its high-quality stainless steel construction and smooth bends help improve exhaust flow, resulting in a noticeable increase in power and a rich, throaty sound.
• AMS Performance Exhaust: The AMS Performance Exhaust focuses on increasing horsepower through its high-flow design, which reduces back pressure effectively. This system features a unique resonator that helps create a more refined sound, making it suitable for both street and track use.

How Do Different Exhausts Compare in Sound Quality?

Exhaust Model	Sound Quality	Decibel Level	Price Range	Weight	Material	Compatibility
Model A	Deep and aggressive tone, ideal for performance enthusiasts.	90 dB – Loud but not overwhelming.	$500 – $700	30 lbs	Stainless Steel	Compatible with automatic 350z
Model B	Moderate sound, suitable for daily driving and comfort.	75 dB – Quiet and refined.	$300 – $500	25 lbs	Aluminized Steel	Compatible with automatic 350z
Model C	Raspy sound with a sporty edge, great for track days.	95 dB – Very loud and attention-grabbing.	$700 – $900	28 lbs	Titanium	Compatible with automatic 350z

What Benefits Can Upgrading the Exhaust Provide for an Automatic 350Z?

Upgrading the exhaust system on an automatic 350Z can yield significant benefits, enhancing both performance and driving experience.

• Increased horsepower: A more efficient exhaust allows for better airflow, reducing back pressure and enabling the engine to breathe more freely. This typically results in noticeable horsepower gains, translating to improved acceleration.

• Enhanced sound: Many aftermarket exhausts are designed to provide a deeper, more aggressive exhaust note. This not only improves the driving experience but also turns heads while cruising or racing.

• Weight reduction: Upgrading to a lightweight exhaust can help decrease the overall weight of the vehicle. This reduction contributes to better handling and acceleration characteristics.

• Improved fuel efficiency: While not the primary reason for an exhaust upgrade, better exhaust flow can lead to more efficient combustion, potentially resulting in improved fuel economy under certain driving conditions.

• Aesthetic appeal: A custom exhaust can enhance the visual appeal of the vehicle’s rear, providing a sportier look that complements the 350Z’s design.

These benefits collectively contribute to a more dynamic driving experience, making an exhaust upgrade a worthwhile consideration for 350Z enthusiasts.

What Are Common Installation Challenges for Exhaust Systems on Automatic 350Zs?

Common installation challenges for exhaust systems on automatic 350Zs include:

• Fitment Issues: Many aftermarket exhaust systems may not perfectly fit the unique contours of the 350Z’s undercarriage, leading to alignment problems.
• Clearance Concerns: The lowered stance of some 350Z models can cause the exhaust to hang too low, risking contact with speed bumps or road debris.
• Heat Shield Removal: Some installations require the removal of factory heat shields, which can complicate the process and may lead to overheating issues if not handled carefully.
• Welding Requirements: Certain exhaust setups may necessitate welding for a secure fit, which can be a barrier for DIY enthusiasts lacking welding skills or equipment.
• Sensor Relocation: Aftermarket systems might require the relocation or modification of O2 sensors, which can be tricky and may affect engine performance if not done correctly.

Fitment issues can arise because aftermarket exhaust systems are often designed generically, which may lead to misalignments that require adjustments or additional modifications to the vehicle.

Clearance concerns are particularly important for drivers who have lowered their 350Z, as a poorly positioned exhaust could lead to damaging impacts with the ground, especially on uneven surfaces.

Heat shield removal is a critical step in some installations, and neglecting to re-install or adequately replace these shields can result in excessive heat exposure to sensitive components nearby, potentially causing failures.

Welding requirements add complexity, as not everyone has access to welding tools or the expertise to perform this correctly; this can result in additional costs if a professional service is needed.

Sensor relocation can be a technical challenge, as incorrect placement or failure to secure O2 sensors properly can lead to erroneous readings, triggering check engine lights or affecting fuel efficiency.

How Have Owners of Automatic 350Zs Rated Their Exhaust Choices?

Owners of automatic 350Zs have provided varied ratings for their exhaust choices based on performance, sound, and build quality.

• Invidia Gemini Exhaust: This exhaust is frequently praised for its deep tone and high-quality stainless steel construction. Owners appreciate its balance between aggressive sound and minimal drone during highway driving, making it a popular choice for those seeking both performance and comfort.
• Motordyne Shockwave Exhaust: Known for its unique design, the Motordyne Shockwave offers a distinctive sound that many owners love. The exhaust features a tapered design that enhances airflow, resulting in improved performance, and users report a noticeable increase in horsepower and torque.
• GReddy Revolution GT Exhaust: This exhaust system is well-regarded for its sleek design and exceptional fitment. Owners highlight its sporty sound that is aggressive yet refined, along with the added benefit of lightweight construction which contributes to overall vehicle efficiency.
• Borla Cat-Back Exhaust: Borla is known for producing durable and high-performance exhaust systems. Owners appreciate the deep, throaty sound that Borla systems deliver, as well as their longevity and resistance to corrosion, making it a reliable choice for long-term use.
• AAM Competition V2 Exhaust: This exhaust system is favored for its performance gains and aggressive sound profile. Users report improved throttle response and a noticeable increase in power, combined with a design that minimizes drone, making it suitable for everyday driving.
• Stillen Cat-Back Exhaust: The Stillen exhaust is recognized for its smooth, refined sound that appeals to many 350Z owners. It offers a well-engineered balance of performance and comfort, with a design that enhances exhaust flow for better engine efficiency.

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