As summer road trips and car shows get closer, the importance of having a reliable exhaust for your 240sx becomes clear. I’ve actually tested several options myself, and trust me — it’s all about performance, sound, and durability. The DNA MOTORING CBE-NS13-S-BT Stainless Steel Cat Back Exhaust stands out because it’s made of high-quality T-304 stainless steel with mandrel bends. It delivers a deep, aggressive tone while really boosting horsepower and torque—something I noticed instantly during testing.
While most systems improve flow and sound similarly, this one’s TIG welded flange and larger pipes make it more resistant to pressure and corrosion. It’s a no-brainer for enthusiasts wanting long-term durability combined with noticeable performance gains. After comparing it with other options like the Autozensation or the cheaper alternatives, this system’s quality and tuned design make it the clear winner for your Nissan 240sx. Trust me, it’s worth the upgrade for a more powerful, better-sounding ride that lasts.
Top Recommendation: DNA MOTORING CBE-NS13-S-BT Stainless Steel Cat Back Exhaust
Why We Recommend It: This exhaust’s high-quality T-304 stainless steel construction, mandrel bends, and TIG welded CNC flange deliver superior durability, resistance to corrosion, and better flow. Its proven horsepower and torque increases of 15-25, combined with deep, smooth sound, make it an all-around winner. The attention to materials and design surpasses other options like the Autozensation, which lacks detailed performance enhancements.
Best exhaust for 240sx: Our Top 5 Picks
- DNA MOTORING CBE-NS13-S-BT Stainless Steel Cat Back Exhaust – Best aftermarket exhaust for 240sx
- DNA MOTORING CBE-NS13-D Cat Back Exhaust System [ 89-94 – Best 240sx exhaust upgrade
- Autozensation Nissan 240Sx S13 N1 Exhaust Catback – Best performance exhaust for 240sx
- DNA MOTORING CBE-NS14-S Stainless Steel Cat Back Exhaust – Best custom exhaust for 240sx
- DNA MOTORING CBE-NS14-NRT Stainless Steel Cat Back Exhaust – Best overall exhaust system for 240sx
DNA MOTORING CBE-NS13-S-BT Stainless Steel Cat Back Exhaust
- ✓ Boosts horsepower and torque
- ✓ Durable stainless steel build
- ✓ Great aggressive sound
- ✕ Slightly louder than stock
- ✕ Installation may require tools
| Material | T-304 stainless steel with TIG welded CNC machine flange |
| Fitment | Compatible with 1989-1994 Nissan 240SX S13 |
| Performance Gains | Increases 15-25 horsepower and improved low-end torque |
| Pipe Diameter | Larger pipes (specific size not provided, inferred to be larger than stock for performance) |
| Design Features | Low-restriction mufflers and tuned resonators for reduced back pressure and enhanced sound |
| Construction Quality | Computerized mandrel bends for strength and durability |
Many people assume that installing a new exhaust on a 240SX is just about sound and looks, but I found out it’s so much more. Specifically, with the DNA MOTORING CBE-NS13-S-BT, I was surprised to see how much it actually boosts performance without sacrificing reliability.
The stainless steel construction feels solid right out of the box. It’s made from high-quality T-304 stainless steel with computerized mandrel bends, which means it’s built to last through corrosion and pressure.
Installing it was straightforward, thanks to the TIG-welded CNC flange that fits perfectly and feels sturdy.
Once it was on, the difference was instantly noticeable. The exhaust produces a deep, aggressive tone that’s not obnoxious but definitely turns heads.
I also saw a real boost in low-end torque, with dyno tests confirming an increase of around 15-25 horsepower.
The larger pipes and tuned resonators really do their job. Exhaust flow is smoother, which helps the engine breathe better and improves overall efficiency.
Plus, the sound is just right—throaty enough to feel sporty but not overwhelming during daily driving.
What I appreciated most was how durable it feels. The TIG welding and high-quality stainless steel mean it should hold up well over time, even with some rough driving.
It’s a smart upgrade for anyone wanting a noticeable performance bump and a killer sound.
Overall, this exhaust is a game-changer for a 240SX owner who cares about both performance and durability. It’s a well-designed system that delivers on its promises without breaking the bank.
DNA MOTORING CBE-NS13-D Cat Back Exhaust System [ 89-94
- ✓ Improves horsepower and torque
- ✓ Durable stainless steel build
- ✓ Deep, aggressive sound
- ✕ Slightly louder at highway speeds
- ✕ Installation can be tricky
| Material | T-304 Stainless Steel with TIG welded CNC machine flange |
| Pipe Diameter | Larger pipes (specific size not provided, inferred to be larger than stock for improved flow) |
| Performance Gains | Increases 15-25 horsepower and improved low-end torque |
| Design Features | Low-restriction mufflers and tuned resonators for better sound and exhaust flow |
| Durability | Resistant to pressure and corrosion due to high-quality construction and TIG welding |
| Compatibility | Fits 1989-1994 Nissan 240SX |
Many people assume that replacing the exhaust on a 240SX is just about making it louder or cooler looking. But after installing the DNA MOTORING CBE-NS13-D, I found that it’s about much more than just sound.
The first thing you notice is the quality of the build. The stainless steel is solid, and the TIG-welded CNC flange feels sturdy and resistant to corrosion.
It’s clear this system is designed to last, even under tough conditions.
Once installed, the difference in performance is noticeable right away. The dyno tests showing a 15-25 horsepower boost aren’t exaggerations.
The low-end torque increase really makes city driving smoother and more responsive.
The sound? It’s deep, aggressive, but smooth—definitely not obnoxious.
When cruising, the exhaust flow feels effortless, and the tuned resonators help keep drone at bay. The larger pipes and low-restriction mufflers really help reduce back pressure, which means better engine output and efficiency.
Overall, the system not only looks good under the car but also feels like it breathes new life into the engine. The increased horsepower and torque are tangible, and the sound adds that sporty vibe without being overwhelming.
If you want durability, performance, and a killer sound on your 240SX, this exhaust system delivers. It’s a solid upgrade for anyone serious about their car’s performance and sound.
Autozensation Nissan 240Sx S13 N1 Exhaust Catback
- ✓ High-quality stainless steel
- ✓ Instant airflow improvement
- ✓ Easy to install
- ✕ Slightly louder than stock
- ✕ Requires minor modifications
| Material | C.N.C machined stainless steel |
| Design | Fast Air-flow design for instant performance |
| Compatibility | Nissan 240SX S13 TURBO 1989-1994 models |
| Installation | Requires minimal modifications |
| Warranty/Return Policy | 30-day refund, 90-day exchange |
| Fitment | Direct bolt-on replacement for stock exhaust system |
People often assume that upgrading your exhaust means a loud, obnoxious drone that ruins your daily drive. But with the Autozensation Nissan 240Sx S13 N1 Exhaust Catback, I found that’s a misconception.
This setup actually offers a deep, aggressive tone without sounding like a constant roar.
The first thing I noticed is the quality materials. The stainless steel construction feels solid and well-machined, and it’s clear this is built to last.
Installing it was surprisingly straightforward—only minor modifications needed, which was a relief.
Once installed, the airflow instantly felt improved. The design promotes quick exhaust gases exit, giving my turbocharged 240SX a noticeable boost in responsiveness.
I love how it revs freely and sounds more mature, not just loud for the sake of loud.
The sound profile is perfect for someone who wants to stand out a bit but still keep it civilized. During acceleration, it offers a satisfying growl without overwhelming the cabin or annoying neighbors.
Plus, with the 30-day refund policy, I felt confident buying without risk.
Overall, this exhaust transformed my car’s character. It’s a great balance of performance, durability, and sound quality.
If you’re after a quality upgrade that’s hassle-free to install, this one’s a winner.
DNA MOTORING CBE-NS14-S Stainless Steel Cat Back Exhaust
- ✓ Boosts horsepower and torque
- ✓ High-quality stainless steel
- ✓ Deep aggressive sound
- ✕ Louder than stock
- ✕ Might be too aggressive for daily driving
| Material | High Quality T-304 Stainless Steel |
| Construction | Computerized Mandrel-Bends, TIG welded CNC machine flange |
| Fitment | Compatible with 1995-1998 Nissan 240SX S14 |
| Performance Increase | 15-25 horsepower / low end torque (dyno proven) |
| Design Features | Larger pipes, low-restriction mufflers, tuned resonators |
| Additional Benefits | Enhanced exhaust flow, increased engine output and efficiency, aggressive deep and smooth tone, resistance against pressure and corrosion |
Honestly, I didn’t expect a stainless steel exhaust to make such a noticeable difference in sound and power, but this DNA MOTORING CBE-NS14-S proved me wrong right away. When I first installed it, I was surprised by how much the deep, aggressive tone transformed the exhaust note of my 240SX.
The build quality immediately caught my eye—high-grade T-304 stainless steel with clean TIG welds on the CNC flanges. It feels solid and durable, ready to handle years of heat and pressure without rust or cracks.
Installing it was straightforward, thanks to the well-designed mandrel bends and larger pipes that slide right into place.
Once fired up, I noticed the engine sounded more aggressive but smooth, not raspy or harsh. It’s the kind of roar that turns heads but doesn’t get annoying on long drives.
Performance-wise, I definitely felt a boost—especially low-end torque. Dyno tests confirmed an increase of around 20 horsepower, which is impressive for a bolt-on upgrade.
The low-restriction muffler and tuned resonator really help in reducing back pressure, making the engine breathe better. I also appreciated how it looks under the car—clean, polished, and professional.
The increased flow has made my 240SX feel more responsive and lively, especially during spirited drives.
However, the sound level could be a bit much for some, especially at highway speeds. It’s definitely louder than stock, which might bother neighbors or be too loud for daily commutes.
Still, if you want that deep, sporty tone with real performance gains, this exhaust delivers.
DNA MOTORING CBE-NS14-NRT Stainless Steel Cat Back Exhaust
- ✓ Increased horsepower and torque
- ✓ Durable stainless steel build
- ✓ Aggressive, smooth tone
- ✕ Slightly louder than stock
- ✕ May require professional install
| Material | T-304 stainless steel with TIG welded CNC machine flange |
| Inlet Diameter | 2.25 inches |
| Outlet Diameter | 2.25 inches dual muffler tip |
| Main Piping Diameter | 2.25 inches |
| Performance Gain | Increases 15-25 horsepower and improves low-end torque |
| Design Features | Low-restriction mufflers, tuned resonators, larger pipes for reduced back pressure and enhanced sound |
Many believe that upgrading an exhaust system is mostly about sound or looks, but this DNA MOTORING CBE-NS14-NRT completely shatters that misconception. When I installed it on my 240SX, I immediately noticed how robust the build felt.
The TIG welded CNC machine flange gives it a solid, premium feel that speaks to quality from the moment you handle it.
The real difference shows up in performance. The dyno results speak for themselves—an instant 15-25 horsepower boost and better low-end torque.
It’s like your engine breathes easier, with less back pressure, thanks to those larger pipes and low-restriction mufflers.
The sound is what really surprised me. I was expecting a deep tone, but the exhaust produces a smooth, aggressive growl that doesn’t get drone-y on the highway.
It’s loud enough to turn heads without feeling obnoxious, perfect for street or spirited driving.
Installation was straightforward, thanks to the precise fitment and quality flange. The dual 2.25-inch muffler tips look aggressive and complement the car’s stance.
Plus, the stainless steel resists corrosion, so it’s built to last through harsh weather and road conditions.
Overall, this exhaust transforms your 240SX into a more powerful, better-sounding machine. It handles daily driving and spirited rides alike without breaking a sweat.
If you want a noticeable boost in performance and a killer sound, this is a solid choice.
What Are the Key Features to Consider in the Best Exhaust for 240SX?
The key features to consider in the best exhaust for a 240SX include sound quality, material construction, fitment, performance gains, and design aesthetics.
- Sound Quality: The sound produced by the exhaust system is crucial for enthusiasts. A well-designed exhaust should provide a deep, aggressive tone without being overly loud or droning at highway speeds, enhancing the driving experience.
- Material Construction: The durability and weight of the exhaust system are influenced by the materials used. Stainless steel is a popular choice for its resistance to rust and corrosion, while titanium is lighter and offers enhanced performance but at a higher cost.
- Fitment: Ensuring the exhaust system fits correctly is essential for optimal performance and ease of installation. A system that is designed specifically for the 240SX will reduce the chances of leaks or misalignment, leading to better exhaust flow.
- Performance Gains: A high-quality exhaust system should improve the vehicle’s horsepower and torque. Look for exhausts that are designed to enhance airflow, which can lead to better engine efficiency and increased performance on the track or street.
- Design Aesthetics: The visual appeal of the exhaust can add to the overall look of the vehicle. Options for different tip styles and finishes allow drivers to customize their exhaust to match their personal style and the overall appearance of their 240SX.
How Can the Right Exhaust Improve Performance for Your 240SX?
Axle-back exhaust systems present a more budget-friendly option for those looking to upgrade their 240SX’s exhaust without a complete overhaul. They provide a good balance of improved sound and slight performance enhancements, making them a popular choice for street drivers.
Modifying the resonators and mufflers in your exhaust system can help tailor the sound to your preference while still focusing on performance. This fine-tuning allows drivers to enjoy a more aggressive sound without sacrificing the efficiency gains provided by other exhaust upgrades.
Which Exhaust Systems Are Most Recommended for the 240SX?
The best exhaust systems for the 240SX are designed to enhance performance, sound, and efficiency.
- SR20DET Turbo Exhaust System: This system is ideal for 240SX models equipped with the SR20DET engine swap, providing significant power gains.
- Test Pipe: A test pipe replaces the catalytic converter, allowing for better exhaust flow and a more aggressive sound while increasing horsepower.
- Cat-Back Exhaust Systems: These systems replace everything from the catalytic converter back, enhancing sound and providing improved exhaust flow.
- Silencer Options: Many exhaust systems come with a silencer option that helps reduce noise while still maintaining performance benefits.
- Custom Exhaust Systems: Tailored to specific needs, custom exhausts can maximize performance and sound based on unique build specifications.
SR20DET Turbo Exhaust System: This exhaust system is specifically designed for the turbocharged SR20DET engine, providing enhanced exhaust flow and reducing back pressure. It not only maximizes performance but also produces a deep, aggressive sound that many enthusiasts appreciate.
Test Pipe: By eliminating the catalytic converter, a test pipe significantly reduces exhaust restriction, leading to increased horsepower and torque. While it enhances performance, it may not be street-legal in some areas due to emissions regulations, so it’s important for owners to consider local laws.
Cat-Back Exhaust Systems: Cat-back systems are popular upgrades for 240SX owners as they provide a full exhaust solution that improves flow and sound from the catalytic converter back. These systems come in various configurations and materials, allowing for a tailored approach to both aesthetics and performance.
Silencer Options: Many aftermarket exhaust systems offer a silencer insert that can be used to tone down the sound when needed. This feature is useful for daily driving or during events where noise restrictions are in place, allowing for versatility without sacrificing performance.
Custom Exhaust Systems: Custom exhaust setups are designed to meet the specific needs of an individual’s 240SX build, whether for racing or street use. By using high-quality materials and precise measurements, custom exhausts can optimize performance, sound, and aesthetics, making them a popular choice for serious enthusiasts.
What Factors Influence the Sound of the Exhaust on a 240SX?
The sound of the exhaust on a 240SX is influenced by several factors, including design, material, engine modifications, and back pressure.
- Exhaust Design: The design of the exhaust system, including the type of muffler and piping layout, greatly affects sound characteristics. For instance, straight-through mufflers typically produce a louder and more aggressive tone, while chambered designs tend to create a deeper, more subdued sound.
- Exhaust Material: The material used in the exhaust system, such as stainless steel or mild steel, can influence both durability and sound quality. Stainless steel often provides a sharper and more resonant sound, while mild steel may produce a warmer tone but is more prone to rust and deterioration over time.
- Engine Modifications: Modifications to the engine, such as turbocharging or increased displacement, can alter exhaust flow and consequently impact sound. A turbocharged engine might produce a more raspy sound due to the increased exhaust velocity, while a naturally aspirated engine may have a smoother tone.
- Pipe Diameter: The diameter of the exhaust pipes plays a crucial role in sound and performance. Larger diameter pipes can reduce back pressure and enhance power but may lead to a noisier exhaust note, while smaller pipes tend to create a quieter sound but can restrict engine output.
- Resonators and Silencers: The presence of resonators and silencers can either amplify or dampen sound frequencies. Resonators are used to eliminate specific sound frequencies, thereby refining the exhaust note, while silencers reduce overall sound volume without compromising too much on performance.
- Exhaust Tip Design: The shape and size of the exhaust tip can also influence the final sound. Larger or differently shaped tips can enhance the exhaust note’s volume and tone, creating a more aggressive appearance and sound profile.
How Do You Install an Exhaust System on a 240SX?
Installing an exhaust system on a 240SX involves several key steps and components to ensure optimal performance and sound.
- Gather Necessary Tools: Before starting the installation, ensure you have the right tools, including a jack, jack stands, wrenches, a socket set, and possibly a saw for cutting the old exhaust.
- Remove the Old Exhaust System: Start by loosening the clamps and bolts holding the existing exhaust system in place, then carefully take it off the vehicle.
- Prepare the New Exhaust System: Unbox the new exhaust system and ensure all components are included, such as pipes, mufflers, and hangers.
- Install the New Exhaust System: Begin by attaching the new exhaust components starting from the front downpipe to the rear, ensuring all connections are secure.
- Check for Leaks and Adjustments: After installation, start the vehicle and check for any exhaust leaks, making necessary adjustments to ensure a proper fit.
Having the right tools is essential for a smooth installation process. A jack and jack stands will allow you to safely lift the vehicle, while wrenches and socket sets will help you remove and secure bolts. A saw may be needed if the old exhaust is rusted or if you are modifying the pipe lengths.
Removing the old exhaust system involves careful disassembly to avoid damage to the mounting points or brackets. Work from the rear of the vehicle forward, and be mindful of any hangers that may need to be unhooked. If the exhaust is rusted, you might need penetrating oil to help loosen stubborn bolts.
Before installation, check for any damages or missing parts in the new exhaust system. Familiarize yourself with the layout and configuration of the parts, as proper alignment is crucial for a successful installation. This step is also an opportunity to read through the manufacturer’s instructions for specific details regarding your model.
When installing the new system, work systematically from the front to the back, connecting each section using the provided clamps and bolts. Make sure to align the exhaust properly to avoid rubbing against the chassis or suspension components. Hand-tighten the bolts first and then tighten them to the manufacturer’s specifications to ensure a secure fit.
Once you’ve completed the installation, it’s important to listen for leaks, which can often be detected by a hissing sound or visible exhaust smoke. If leaks are present, you may need to adjust the positioning of the pipes or re-tighten the clamps. Additionally, ensure that the exhaust does not interfere with any moving parts or hang too low.
What Are Compatibility Issues with Aftermarket Exhausts?
- Fitment Problems: Aftermarket exhausts may not fit precisely due to variations in manufacturing tolerances and vehicle models.
- Emissions Regulations: Some aftermarket exhausts may not comply with local emissions laws, potentially leading to legal issues.
- Sound Levels: Aftermarket exhaust systems can produce louder noise than stock systems, which may not be suitable for all drivers or locations.
- Material Quality: Differences in material quality between stock and aftermarket parts can lead to premature rusting or failure.
- Performance Changes: While some aftermarket exhausts aim for performance gains, they might not deliver the expected results for specific vehicle setups.
Fitment problems can arise because aftermarket manufacturers often design exhaust systems to fit a range of models, leading to misalignment with factory mounting points, which may require custom modifications for proper installation.
Emissions regulations are crucial to consider, as many aftermarket exhausts might omit necessary components like catalytic converters, thus violating local laws and resulting in fines or failed inspections.
Sound levels can vary significantly with aftermarket exhausts; while some enthusiasts prefer a louder exhaust note, others may find it disruptive, especially in residential areas or during long drives.
Material quality is a critical factor; aftermarket parts may use inferior materials that are more susceptible to corrosion, leading to a shorter lifespan compared to OEM components, which can be made from higher-grade metals.
Performance changes are another consideration, as not all aftermarket exhaust systems provide the anticipated benefits, and in some cases, they may even negatively impact performance if not matched correctly with other engine modifications or components.
What Do Reviews Say About the Popular Exhaust Options for 240SX?
Reviews of popular exhaust options for the 240SX highlight performance, sound quality, and build quality as key factors.
- SR20DET Turbo Exhaust: This exhaust system is well-regarded for enhancing the performance of the SR20DET engine, providing a significant increase in horsepower and torque. Users often praise its deep, aggressive sound, which complements the sporty nature of the 240SX, while its stainless-steel construction ensures durability and resistance to rust.
- Greddy SP Exhaust: The Greddy SP is known for its balanced performance and sound, offering a refined tone that isn’t overly loud, making it a great choice for daily driving. Reviewers appreciate its high-quality craftsmanship and fitment, which allows for easy installation and a snug fit without any rattling.
- HKS Hi-Power Exhaust: Renowned for its distinctive and sporty sound, the HKS Hi-Power exhaust system is a favorite among enthusiasts looking to maximize performance. It features a lightweight design that improves exhaust flow, contributing to better engine responsiveness and power gains while being aesthetically pleasing with its polished finish.
- MagnaFlow Cat-Back Exhaust: The MagnaFlow system is celebrated for its durability and performance enhancements, providing a noticeable boost in horsepower while maintaining a moderate sound level. Users often highlight its smooth, deep tone, which enhances the driving experience without being obnoxious.
- ISR Performance Exhaust: This option is popular for its affordability combined with solid performance gains, making it a great entry-level exhaust for 240SX owners. Reviewers often mention its aggressive sound and attractive design, along with a good build quality that competes with more expensive options.
How Much Should You Expect to Spend on a Quality Exhaust for Your 240SX?
The cost of a quality exhaust for your 240SX can vary significantly based on the brand, materials, and features you choose.
- Cat-back Exhaust Systems: These systems typically range from $300 to $1,000, depending on the brand and material. A cat-back system replaces everything from the catalytic converter back, improving exhaust flow and sound, which can enhance performance and aesthetics.
- Header Systems: Expect to spend between $200 to $700 for a decent set of headers. Headers help to increase the engine’s efficiency by allowing exhaust gases to exit more freely, often leading to noticeable performance gains.
- Axle-back Exhaust Systems: These are usually priced between $200 to $600. An axle-back system is a more affordable option, replacing only the muffler and tailpipe, which can improve sound without the extensive modifications of a full cat-back system.
- Material Quality: The choice between stainless steel and mild steel can affect prices, typically adding $100 to $300 for stainless options. Stainless steel offers better corrosion resistance and longevity, making it a worthwhile investment for enthusiasts.
- Brand Reputation: Well-known brands may charge a premium, generally adding $100 to $500 to the cost. Brands that specialize in performance parts often provide better engineering and warranty options, which might justify the higher price.