Top 10 Best Exhaust For First Gen Cummins That Boost Power!
Many first generation Cummins owners face the challenge of finding an exhaust system that balances performance, durability, and sound. Choosing the right setup can improve your truck’s power output and fuel efficiency while also providing the right tone for your driving style. The best exhaust for first gen Cummins often delivers enhanced airflow and corrosion resistance without compromising reliability.
The best exhaust for first gen Cummins often delivers enhanced airflow and corrosion resistance without compromising reliability. These systems are designed for drivers who want to maintain their engine’s strength while upgrading overall exhaust flow. This review will cover several popular exhaust options, highlighting how they fit different needs, installation ease, and long-term benefits.
Whether you’re after improved throttle response or a quieter ride, this guide aims to help you make an informed decision.
Unlock Peak Performance with Top-Tier Exhaust Options for Your Classic Diesel Powerhouse
| Image | Product | Price |
|---|---|---|
Our Recommended 1  | CUMMINS NW Cummins 1551258 Onan Muffler | Check Price |
Our Recommended 2  | 155-3481-02 Generator Exhaust Kit, Compatible with Cummins Onan Generator | | Check Price |
Our Recommended 3  | CUMMINS NW Cummins Onan (155-3481-02 Tail Pipe/Exhaust Kit | Check Price |
1. CUMMINS NW Cummins 1551258 Onan Muffler
Upgrade your Cummins engine with the CUMMINS NW Cummins 1551258 Onan Muffler for reliable performance. Designed to fit seamlessly, this muffler provides excellent noise reduction and durability. Its precise construction enhances exhaust flow for smoother engine operation and extended component life.
Crafted in the United States, the CUMMINS NW muffler meets strict quality standards. The product dimensions and weight ensure easy installation without bulky parts getting in the way. This auto accessory benefits drivers looking to improve their diesel engine’s sound control and efficiency.
This auto accessory benefits drivers looking to improve their diesel engine’s sound control and efficiency. Rugged build materials withstand harsh operating conditions, making it suitable for demanding environments. Compatible with various Cummins engine models, it offers consistent exhaust management while maintaining compliance with noise regulations.
Additionally, this muffler is lightweight at 16 ounces, reducing added vehicle weight. Users will appreciate the straightforward fit, reducing installation time and expense. Whether upgrading an older system or replacing worn components, this muffler balances durability, function, and ease of use.
Whether upgrading an older system or replacing worn components, this muffler balances durability, function, and ease of use. It represents sound value for anyone maintaining a powerful Cummins engine setup.
Pros
- Durable construction built to withstand tough conditions
- Lightweight design minimizes added stress on the engine
- Efficient noise reduction for quieter operation
Cons
- Limited compatibility with only select Cummins models
Combining solid build quality and effective sound control, the CUMMINS NW 1551258 Onan Muffler provides a reliable exhaust solution. Its ease of installation and strong materials make it a dependable choice for Cummins diesel owners seeking improved engine performance.
2. 155-3481-02 Generator Exhaust Kit, Compatible with Cummins Onan Generator |
Enhance your Cummins Onan generator’s performance with the 155-3481-02 Generator Exhaust Kit. Designed specifically for several Cummins RV generator models, it offers a reliable solution to handling the high-temperature exhaust safely. This exhaust kit protects your generator and surrounding area during operation, delivering peace of mind.
This exhaust kit protects your generator and surrounding area during operation, delivering peace of mind.
Built for durability and ease of use, it simplifies maintenance and prolongs the lifespan of your generator setup. Whether you use your generator for camping or on the road, this exhaust kit supports safer and more efficient function.
Crafted from heat-resistant steel, this exhaust kit withstands extreme temperatures without cracking or rusting prematurely. It fits exact models like the RV QG 5500 and RV QG 7000, matching the OEM part number 155-3481-
Its durable construction helps components avoid overheating during extended use.
Installation is straightforward, connecting directly to the factory exhaust outlet with standard clamps. This design avoids the need for cutting or welding in most cases, making it perfect for quick setups or replacements.
The kit extends the exhaust safely away from living areas, improving safety and comfort while your generator runs.
Backed by a 36-month warranty, the product assures quality and lasting performance. It serves RV owners and Cummins generator users who prioritize safety and reliability.
Pros
- Durable, heat-resistant steel construction resists rust and cracking.
- Easy installation with standard clamps avoids cutting or welding.
- Compatible with multiple Cummins RV generator models for precise fit.
Cons
- Limited to specific generator models; check compatibility before purchase.
Reliable, sturdy, and simple to install, the 155-3481-02 Generator Exhaust Kit offers an effective solution for managing exhaust heat on compatible Cummins Onan generators. Its balance of quality and convenience makes it a solid choice for safe exhaust routing during generator use.
3. CUMMINS NW Cummins Onan (155-3481-02 Tail Pipe/Exhaust Kit
Upgrade your RV generator’s performance with the CUMMINS NW Cummins Onan (155-3481-02) Tail Pipe/Exhaust Kit designed for reliable and efficient exhaust management. This kit includes everything needed for installation, ensuring your generator operates safely and meets environmental safety standards.
Built to fit seamlessly with HGJAB RV generator sets, it features a USDA Forest Service approved spark arrester muffler. The durable construction promotes long-lasting performance, while its tailored design maintains optimal exhaust flow and safety during generator operation.
The exhaust kit contains a 26-inch tailpipe, a clamp, and a hanger, providing all necessary components for secure attachment. It connects precisely to a 1-3/8 inch outer diameter down tube on the generator, making installation straightforward and secure. The materials used offer strong resistance against heat and corrosion, which helps maintain performance over time.
Designed specifically for Cummins Onan generators, this kit delivers a snug fit that reduces exhaust leaks and noise. The spark arrester muffler prevents harmful sparks from leaving the tailpipe, adding a protective layer especially important in forested or regulated areas.
This Tail Pipe/Exhaust Kit enhances durability without compromising ease of use, so maintenance remains hassle-free. Its compatibility with Cummins HGJAB RV sets makes it ideal for those seeking a reliable exhaust solution that supports both safety and generator longevity.
Pros
- USDA Forest Service approved spark arrester muffler for enhanced safety
- Includes all necessary parts: tailpipe, clamp, and hanger for easy installation
- Durable materials resist corrosion and heat for extended lifespan
Cons
- Not compatible with generator models outside Cummins HGJAB series
This tailpipe and exhaust kit stands as a dependable choice for those aiming to maintain safe and efficient generator performance. Its specialized design and included hardware simplify the upgrade process while meeting strict safety requirements, making it a valuable addition for Cummins generator owners.
4. Cummins 1552424 Onan Exhaust Tube Kit
Upgrade your exhaust system with the Cummins 1552424 Onan Exhaust Tube Kit, designed to fit seamlessly and enhance vehicle performance. Crafted by Cummins, this exhaust tube is engineered for durability and reliable operation, making it a dependable choice for your engine needs.
Whether replacing a worn-out exhaust pipe or improving your engine’s efficiency, this exhaust tube kit stands out for its quality and precise fit. It serves as an essential component that supports proper exhaust flow and ensures quiet operation.
The Cummins exhaust tube kit offers robust construction to withstand high temperatures and harsh conditions. Its automotive-grade materials promise longevity and resistance to wear. The model 1552424 is engineered to match original specifications, ensuring a perfect fit without modification.
Installation is straightforward, allowing for a hassle-free replacement experience. The moderate weight of
35 pounds makes handling and mounting easier during the installation process. This component is particularly suitable for users who require a durable and reliable exhaust pipe replacement for their Onan engines.
Performance-wise, the exhaust tube enhances the emission system by facilitating optimal exhaust gas flow. It also contributes to reducing noise, improving overall engine running smoothness.
Pros
- Durable construction designed for long-lasting use
- Exact fit for Onan engines with minimal installation effort
- Improves exhaust flow and reduces engine noise effectively
Cons
- Limited to specific engine models, not universal
For those looking to maintain or upgrade their engine’s exhaust system, this Cummins exhaust tube kit offers a practical and reliable solution. It balances durability with performance benefits, making it a smart selection for proper engine upkeep.
5. Cummins Onan 1552174 Exhaust Hanger
The Cummins Onan 1552174 Exhaust Hanger offers a reliable and sturdy solution for securing your exhaust tailpipe. Designed specifically for exhaust pipes with a 1-1/2 inch outer diameter, it fits perfectly while providing dependable support. Its robust build contributes to reducing vibration and wear on your exhaust system.
Its robust build contributes to reducing vibration and wear on your exhaust system.
Made by Cummins Onan, a trusted name in automotive parts, this exhaust hanger excels in durability and performance. It suits those maintaining or repairing first generation Cummins engines, ensuring a smooth and secure exhaust setup. The hanger’s precise fit helps prolong exhaust system life by minimizing stress on mounted components.
Constructed from quality materials, this exhaust hanger withstands heat and harsh road conditions efficiently. Installation is straightforward, allowing users to replace old or worn hangers quickly without hassle. The compact design adapts well to various mounting points, contributing to a snug and stable exhaust alignment.
Its compatibility with a 1-1/2 inch outer diameter tailpipe offers versatility across multiple exhaust configurations. By holding the exhaust firmly in place, it reduces rattling noises and prevents premature joint wear.
This hanger is a cost-effective upgrade that supports the overall durability of your vehicle’s exhaust system.
Ideal for vehicle owners who prefer maintaining original parts while improving reliability. Whether it’s for routine maintenance or an exhaust repair, this product ensures long-lasting performance with minimal effort. The high customer ratings reflect its efficiency and value, making it a trustworthy choice for automotive replacement hangers.
The high customer ratings reflect its efficiency and value, making it a trustworthy choice for automotive replacement hangers.
Pros
- Durable construction withstands heat and vibrations
- Fits 1-1/2 inch outer diameter exhaust tailpipes precisely
- Easy to install with secure, stable support
Cons
- Limited to specific exhaust tailpipe diameters
The Cummins Onan 1552174 Exhaust Hanger delivers practical performance and long-term reliability. It stands out as a dependable choice for anyone looking to maintain or repair their exhaust system with minimal complexity. A solid investment for durability and fitment confidence.
6. Replacement for Cummins 6C, 6CT, 6CTA 8.3L Marine Engine Exhaust
Engineered as a precise replacement for the Cummins 6C, 6CT, and 6CTA 3L marine engines, this exhaust manifold enhances your engine’s efficiency and durability. It is ideal for maintaining engine performance while ensuring reliable exhaust flow.
Designed to meet OE specifications with part numbers 3922935 and 3911670, it offers a seamless fit that keeps your engine running smoothly. Its sturdy build promises longevity even in demanding marine environments, helping protect your investment.
The exhaust manifold’s solid construction from durable materials withstands heat and corrosion typically experienced in marine applications. Installation is straightforward, allowing for quick replacement without extensive modifications.
Compatible specifically with the 3L Cummins 6CTA marine engines and related models, it ensures precise fitment and reliable operation.
Its design supports consistent engine output and reduces potential exhaust leaks that can impact performance. Maintenance is minimal due to the high-quality manufacturing standards applied, which makes this manifold a practical choice.
Offering reliable functionality, it supports the longevity of your marine engine by efficiently directing exhaust gases. This product suits boat owners and operators who want to restore or maintain engine power without compromise. Compared to aftermarket manifolds with uncertain specs, it provides trusted quality and a fit tailored to Cummins marine engines, positioning it as a dependable replacement component.
Pros
- Exact OE part fitment ensuring compatibility and easy installation
- Durable construction resists corrosion and high engine temperatures
- Maintains optimal exhaust flow for steady engine performance
Cons
- Designed exclusively for specific 8.3L Cummins marine engine models
Reliable and built to original specifications, this exhaust manifold is an excellent choice to maintain your Cummins marine engine’s performance and durability.
7. 23.62″ L & 1″ ID Generator Exhaust Extension Kit Stainless
Enhance your vehicle’s exhaust system with the 62 L & 1 ID Generator Exhaust Extension Kit. Designed to offer flexibility and durability, it delivers reliable performance under demanding conditions.
Designed to offer flexibility and durability, it delivers reliable performance under demanding conditions. Crafted to fit precisely, it adapts effortlessly to various vehicle setups.
Constructed from high-quality stainless steel, this exhaust extension withstands rust, abrasion, and high temperatures. Its flexible design allows easy bending to navigate tight spaces and avoid obstacles.
Built to last, the stainless steel tubing maintains integrity during everyday use and harsh environments. The package includes one
62-inch pipe with a 98-inch inner diameter and two clamps to secure the fit firmly. Compatibility with different portable generators and heating systems adds versatility.
The installation process is straightforward—remove the old pipe, position the new piece, and tighten the clamps. This eliminates the need for professional help and saves time.
Users will appreciate the adaptable length and flexibility, which suits various chassis shapes and piping layouts.
Compared to other exhaust extensions, this model stands out due to its toughness and ease of installation. It offers excellent stability and can improve overall system durability. This extension pipe is a practical choice for vehicle owners looking to maintain or upgrade their exhaust setup efficiently.
This extension pipe is a practical choice for vehicle owners looking to maintain or upgrade their exhaust setup efficiently.
Pros
- Durable stainless steel resists rust and abrasion
- Flexible design allows bending to fit narrow spaces
- Easy DIY installation with included clamps
Cons
- Limited to pipe setups with a 1-inch diameter
This exhaust extension combines strong materials with flexible design to enhance your vehicle’s exhaust system. It delivers solid performance, easy setup, and broad compatibility for practical use and long-lasting reliability.
8. Cummins Onan 155-3481-01 Exhaust Tailpipe
Replacing or upgrading an exhaust tailpipe for your Cummins Onan generator demands precision and durability. The Cummins Onan 155-3481-01 Exhaust Tailpipe offers a reliable connection that maintains the integrity and performance of your generator’s exhaust system.
Crafted for a tight fit and consistent operation, it’s designed to perfectly connect to a 1-3/8 outer diameter down tube. This component ensures smooth exhaust flow and helps maintain optimal engine efficiency under various conditions.
This exhaust tailpipe is made in the United States, emphasizing quality materials and craftsmanship. Weighing
The product conveniently attaches to the generator’s down tube, simplifying installation without compromising durability.
It complements the exhaust system by efficiently channeling gases, reducing backpressure for smoother engine function. The part number 155-3481-01 and manufacturer details assure compatibility and authenticity for Cummins Onan equipment.
A warranty provision offers peace of mind, with customer support available for issues reported within 30 days of purchase. This exhaust tailpipe is an excellent choice for maintaining generator health and longevity, especially suited for owners seeking dependable replacement parts with trusted brand backing.
Pros
- Precisely fits a 1-3/8″ outer diameter down tube for seamless installation
- Durable construction withstands heat and corrosive exhaust gases
- Manufactured in the USA, ensuring high-quality standards and materials
Cons
- Specific to Cummins Onan generators, limiting cross-brand compatibility
The Cummins Onan 155-3481-01 Exhaust Tailpipe offers a solid balance of durability and fit for those maintaining or repairing their Cummins Onan generators. It provides reliable exhaust management and ease of installation, positioning itself as a smart replacement part compared to generic options.
9. 78.7″ Diesel Heater Exhaust Pipe,ID 1 Inch Exhaust Pipe Kit
Enhance your diesel heating setup with the 7 Diesel Heater Exhaust Pipe Kit, designed to deliver reliable performance and effective noise reduction. Crafted from durable stainless steel and aluminum alloy, this kit offers a perfect balance of strength and flexibility for long-term use.
The thoughtful design of the exhaust pipe kit helps minimize sound and vibration, providing a quieter and smoother operation for your diesel engine. It fits seamlessly for projects requiring a 1-inch diameter exhaust solution, making it a smart upgrade for diesel systems.
This complete exhaust pipe kit includes a 74-inch diesel intake hose coupled with clamps to ensure a secure fit.
The diesel muffler features an upgraded internal structure with a porous design that effectively lowers pressure, reducing engine noise significantly. The S-shaped tube inside amplifies sound resistance, enhancing quiet operation.
Durability stands out in this kit thanks to the stainless steel hose which resists heat and rust, ensuring longevity. The muffler’s aluminum alloy construction contributes to lasting performance while keeping the system lightweight.
This exhaust kit is well suited for diesel system maintenance or upgrades where noise management and durability are priorities. Its compact dimensions and reliable sealing reduce exhaust leaks and maximize noise absorption effectively. Overall, the kit balances quality craftsmanship with practical ease of use.
Overall, the kit balances quality craftsmanship with practical ease of use.
Pros
- Effective noise reduction with upgraded muffler design
- Durable stainless steel hose resists heat and corrosion
- Simple installation with secure clamps and screws
Cons
- Length may require trimming for some applications
The 7 Diesel Heater Exhaust Pipe Kit offers a reliable and quiet exhaust solution with sturdy materials and easy setup.
It provides clear advantages in noise control and durability compared to standard kits and fits perfectly where a 1-inch diameter exhaust is required.
10. EVIL ENERGY 2″ Exhaust Muffler, 2″ Inlet (OD) 3″ Outlet
Upgrade your vehicle’s exhaust system with the EVIL ENERGY 2 Exhaust Muffler designed for a rich and powerful sound. Crafted with durable stainless steel, it offers a blend of performance and style, enhancing the auditory presence of your ride. Its universal fit appeals to a variety of vehicle models, making it an adaptable choice.
Delivering a low, deep tone, the muffler is packed with sound-absorbing cotton to control acoustics expertly. The polished finish not only resists corrosion but adds a sleek aesthetic. Installation is hassle-free with multiple mounting options, catering to different preferences and setups.
Installation is hassle-free with multiple mounting options, catering to different preferences and setups. Its two-layer stainless steel walls effectively minimize vibrations while improving sound quality. Compact at
6 inches, this component balances size with functionality and durability. Ideal for those seeking a noticeable exhaust tone without overwhelming noise, this muffler suits daily drivers and off-road vehicles alike. The product stands out for its sturdy build and clear sound enhancement, making it a reliable pick for exhaust upgrades.
The product stands out for its sturdy build and clear sound enhancement, making it a reliable pick for exhaust upgrades.
Pros
- Excellent sound control with low, deep tone output
- Durable polished stainless steel construction resists rust
- Multiple installation methods provide flexible mounting options
Cons
- Installation instructions are not included, professional help advised
EVIL ENERGY’s 2 Exhaust Muffler combines solid construction and impactful sound enhancement for a practical upgrade. Its universal design, paired with multiple fitting options, makes it a versatile choice for many drivers.
Top Exhausts for First Gen Cummins: Ultimate Buying Guide
Sound and noise levels
Choosing the best exhaust for first gen Cummins involves thinking about how you want your truck to sound while also respecting local noise laws. The desired exhaust tone and volume vary depending on whether a lively, deep growl or a more subdued rumble fits your preference.
Considering legal noise restrictions and compliance helps avoid fines and keeps the vehicle street-legal, especially in areas with strict sound ordinances. Balancing these factors leads to an exhaust system that not only enhances engine performance but also delivers a sound profile that suits both the driver’s taste and local rules.
Durability and build quality
When choosing the best exhaust for first gen cummins, paying close attention to durability and build quality helps secure a reliable upgrade that lasts. Components made from materials with strong corrosion resistance and weatherproofing offer protection against rust and environmental damage, which is especially beneficial for trucks exposed to varying weather conditions.
Selecting a product from a manufacturer known for solid warranty coverage and a reputable history adds an extra layer of confidence, ensuring support in case of defects or issues down the line. Combining these factors makes it easier to find an exhaust system that can withstand rugged use while delivering consistent results for everyday driving or heavy-duty applications.
Performance considerations
Choosing the best exhaust for first gen Cummins involves understanding how it affects both horsepower and torque since an efficient exhaust system helps the engine breathe better, leading to improved power output. The flow of exhaust gases and backpressure created by the system play a significant role in engine performance; too much backpressure can reduce efficiency, while smooth exhaust flow promotes better combustion and power delivery. Compatibility with engine modifications is another important aspect because certain exhaust designs complement specific upgrades like turbochargers or fuel systems, helping to maximize gains without causing issues.
Compatibility with engine modifications is another important aspect because certain exhaust designs complement specific upgrades like turbochargers or fuel systems, helping to maximize gains without causing issues. Practical use cases range from daily driving, where moderate noise and fuel economy matter, to heavier towing or performance driving, which demand more robust exhaust solutions. When buying, consider the material quality, design type such as single or dual exhaust, and how well the system fits with any planned or existing modifications to get the best match for the first gen Cummins engine’s needs.
Installation and fitment
Choosing the best exhaust for a first gen Cummins involves understanding how the system fits your specific vehicle model to guarantee a precise and secure attachment. Many exhaust options designed for this truck come with vehiclespecific compatibility, which helps reduce guesswork during selection.
Installing these exhaust systems typically requires standard tools like wrenches and sockets, and many owners find the process straightforward enough for a weekend project without professional assistance. Although most kits are designed for direct replacement, some setups may call for additional modifications such as minor adjustments to mounting points or slight realignment to perfectly match your truck’s frame. It’s also wise to consider whether tuning adjustments will be necessary after installation to optimize engine performance and emissions, as certain aftermarket exhausts can alter air flow and back pressure.
Taking these factors into account helps ensure a smooth installation experience and maximizes the benefits of upgrading your first gen Cummins with a new exhaust system.
Understanding exhaust system types
Choosing the right exhaust for a first gen Cummins involves understanding different exhaust system setups and material options. Single exhaust systems typically focus on simplicity and reduced weight, while dual exhaust setups can improve exhaust flow and engine breathing by allowing gases to exit more efficiently, sometimes resulting in enhanced performance and a distinctive sound.
Catback systems replace the exhaust from the catalytic converter back, making installation more straightforward, often improving sound and reducing backpressure without major modifications. Turboback systems cover the entire exhaust from the turbocharger to the tailpipe, offering greater potential gains in power and efficiency by optimizing every section, which might require more investment and customization. When exploring materials, stainless steel stands out for its durability and resistance to rust, making it a popular choice for long-term use and harsher environments.
Aluminized steel offers a more budget-friendly option with decent corrosion resistance, while other materials might balance cost and performance differently based on priorities. Matching the exhaust setup to the intended use—whether for daily driving, towing, or performance tuning—can influence decisions significantly. Considering noise levels, installation complexity, and compatibility with the engine’s specifications will help in making a satisfying purchase that aligns with both practical needs and personal preferences.
Budget and value
When selecting the best exhaust for first gen Cummins, understanding the price ranges and what to expect can make the buying process smoother. Exhaust systems vary widely in cost, generally reflecting materials, design, and brand reputation.
Considering replacement parts and ongoing support is equally important since readily available components and strong manufacturer backing help maintain the system without unnecessary downtime or expense. Balancing these factors will help find a product that aligns well with your desired quality and offers dependable value over time.
People Also Asked
How Does Upgrading The Exhaust Improve The Performance Of A First Gen Cummins?
Upgrading the exhaust on a first-gen Cummins improves performance by reducing backpressure, allowing exhaust gases to exit more efficiently. This enhances engine breathing, resulting in increased horsepower and better fuel efficiency.
Are There Any Budget-Friendly Exhaust Options For A First Gen Cummins?
Yes, there are budget-friendly exhaust options for a first-gen Cummins, such as basic cat-back systems or aftermarket mufflers from brands like Flowmaster or MagnaFlow. These provide improved sound and performance without breaking the bank.
What Are The Top-Rated Exhaust Systems For A First Gen Cummins Truck?
Top-rated exhaust systems for a first-gen Cummins truck include brands like MBRP, Banks Power, and AFE Power, known for improving performance and sound. These systems offer durable materials and optimized designs to enhance exhaust flow and engine efficiency.
What Materials Are Best For A Durable First Gen Cummins Exhaust System?
The best materials for a durable first-gen Cummins exhaust system are high-quality stainless steel or aluminized steel, as they offer excellent resistance to rust and corrosion. Stainless steel is preferred for its superior durability and longer lifespan, especially in harsh environments.
How Do Different Exhaust Setups Affect The Sound Of A First Gen Cummins Engine?
Different exhaust setups on a first gen Cummins engine can significantly alter its sound, with straight pipes producing a louder, more aggressive tone, while stock or muffler-equipped systems offer a deeper, quieter rumble. Additionally, larger diameter pipes and turbo-back configurations typically enhance exhaust flow and volume, resulting in a more pronounced and throaty exhaust note.
Conclusion
Choosing the best exhaust for first gen Cummins depends on balancing performance gains, sound preferences, and budget. Many options offer improved airflow and horsepower, enhancing engine efficiency without compromising reliability.
The best exhaust for first gen Cummins suits those seeking a noticeable power boost while maintaining durability and compliance with emission standards. For buyers concerned about matching their truck’s original character, options with moderate sound profiles are available.
Ultimately, selecting the right exhaust hinges on your priorities, whether performance, sound, or ease of installation. Careful evaluation will help find a system that complements your first gen Cummins without unnecessary compromises.
