Best Exhaust For 5.9 Cummins

By Kayla J. Newton

Best Exhaust For 5.9 Cummins: Installing a perfect exhaust system will help purify the waste gases improve power and torque, and for some exhausts, it will also produce the desired sound. Buying a reliable exhaust system will allow you to eliminate exhaust gases from your car engine most efficiently and helpfully. 

How to choose the best exhaust for 5.9 Cummins?

To ensure you have the best exhaust system for your Cummins 5.9L engine, keep in mind the following factors: 

Muffler: If you need a quiet driving experience, consider purchasing an exhaust system with a damper. The muffler has the function of suppressing engine noise.

Airflow: An exhaust system that can improve airflow makes the engine more efficient. Look for an exhaust system with a Mandrel-bent pipe. They provide better airflow.

Durability: Choose an exhaust that is at least 1416 gauge aluminium plated steel because they tend to last longer.

Today we have compiled a list of the best products for your Cummins 5.9. All of them are suitable for heavy-duty operations and are very reliable. However, before buying whichever product you choose, it is crucial to consider what best suits your needs.

1. 1045987 Pulse Exhaust Manifold by BD Diesel


BD Diesel Performance 1045987 is perfect for upgrading your car’s stock exhaust manifolds. In addition, it provides excellent overall performance for the 5.9 Cummins engine. 

This exhaust system also reduces backpressure and increases turbo spool up in engine-driven applications. It also increases engine output and efficiency for excellent drivability. It features a fully distributed pulse distributor design, which is highly innovative in this segment. 

A substantial thigh to note for this product is that it is designed to withstand extreme climates and vibrations, whether you drive off-road or make your daily work easier. This exhaust will be a reliable companion for car engines. It is made of high silicon ductile cast iron when it comes to the structure. The structure has been pre-drilled for pyrometer analysis. 

This makes it easy to remove harmful gases from the engine. These unique features make this product the best exhaust gas for 5.9 Cummins on the market.

BD Diesel Performance 1045987 Pulse

Car Exhaust System Parts
  • lower back pain 
  •  Faster turbo coil

Key features:

  • Fully split impulse distributor design 
  •  High silicon ductile cast iron  
  •  Pre-drilled for pyrometer evaluation 
  •  lower back pain 
  •  Faster turbo coil

Technical Details:

Brand: BD Diesel Performance

Model: 1045987

Weight: 1.56 pounds

Availability: 1045987 Pulse Exhaust Manifold is currently available on Amazon.

Pricing: It costs $505.00 from Amazon.

2. Dorman 674-602 Exhaust Manifold


The Dorman Exhaust Manifold 674602 is best known for its outstanding reliability. Precision engineering and durable construction provide an impressive fit and powerful performance. 

The equipment in the exhaust composition is resistant to leaks, warpage, and cracks. Therefore, this product provides consistently impressive performance over long periods of use. 

In addition, this exhaust is also suitable for heavy applications. 

Obtaining the kit’s components gives you all the necessary gaskets and the basic downspout hardware, which allows the user to easily install the exhaust pipe on the engine without the help of an expert.

The exterior is painted to emphasise the structure of this exhaust manifold. This system is also made of high-quality steel, which increases the product’s robustness. 

Apart from that, this exhaust has been extensively tested to provide quality assurance for the user. If you are looking for an excellent alternative to your car’s stock header, this product will undoubtedly meet your needs.

Key features:

  • precision engineering 
  • Made of high-quality steel 
  • Wear-resistant application 
  • Warp and crack resistance 
  • Leak-proof performance

Technical Details:

 Brand: Dorman

Model: 674602 EXHManifold

Weight: 15 pounds

Availability: Dorman 674-602 Exhaust Manifold is currently available on Amazon.

Pricing: It costs $217.95 from Amazon.

3. 46-40012 BladeRunner Ported Ductile Iron Exhaust Manifold by AFE Power


AFI Power’s 4640012 Ductile Cast Iron BladeRunner Exhaust Manifolds embarrass other counterparts in this segment in terms of quality. 

It may be the best choice for your car’s stock exhaust manifold. You can see that the spool-up time has increased significantly. There are dual auxiliary ports that improve the performance of the stock header. Still, this product can reduce the back pressure for seamless output. 

Speaking of mounting parts, this exhaust manifold has a hassle-free and straightforward mounting system, which makes DIY installation easy and convenient for users.

If you are an outdoor enthusiast and want to prioritise an aggressive car’s sound, this model is for you. In general, the 5.9 Cummins engine provides a more robust tone. 

It also improves engine throttle response for a powerful driving experience. In addition, this exhaust system provides excellent durability over long-term use. 

  • Dorman 674-602 Exhaust Manifold Kit

    • precision engineering 
    • Made of high-quality steel
  • 46-40054 BladeRunner Ported Ductile Iron

    • Decrease in exhaust backpressure 
    • Increases the duration of the turbo coi

Key features:

  • One-piece structure 
  • Manufactured from ductile cast iron 
  • Two auxiliary ports 
  • Decrease in exhaust backpressure 
  • Increases the duration of the turbo coil

Technical Details:

Brand: AFI Power

Model: 46-40012

Weight: 24 pounds

Dimensions: 6 x 28 x 6 inches

Availability: 46-40012 BladeRunner is currently available on eBay.

Pricing: It costs $581.08 from eBay.

4. ATS Diesel 2029302272 Turbocharger System


Many people may not be aware that the ATS brand is a leader in emissions from Cummins engines. It is also an OEM and replacement for the 5.9L Cummins engine. 

This model has low exhaust output, backpressure,21, and improved power and performance. 

Perfect choice for durability and high performance. In addition, it efficiently burns the exhaust gas emitted from the 5.9L Cummins engine, raising fuel efficiency to an optimal level. 

ATS exhaust manifold can be used up to 56,000 miles. Also, the only downside to this product is that there is not enough room for the turbocharger support nut to tighten.

ATS Diesel 2029303224 Turbocharger System

Car Exhaust System Parts
  • Package Dimensions: 14.0 H x 26.0 L x 18.0 W (inches)
  • Country of Origin : United States

Key features:

Outstanding all-round performance 

 Improved fuel economy 

 Ideal for everyday driving and towing 

 improved torque curve 

 Less stress on the engine due to better combustion

Technical Details:

Brand: ATS Diesel

Model: ‎2099202272

Weight: 36 lbs

Availability: ATS Diesel 2029302272 is currently available on Amazon.

Pricing: It costs $1,614.42 from Amazon.

5. Diamond Eye K5252A Exhaust Kit


The Diamond Eye K5252A Exhaust Manifold is renowned for providing superior quality turbo-back exhaust to 5.9 litres Cummins. This product is primarily an all-in-one PDF rear system that can replace the OEM cat-back exhaust of the vehicle. 

The product comes with all the necessary clamps and accessories for smooth and easy installation. This exhaust manifold can be easily installed on 5.9 Cummins with essential vehicle tools.

In addition, this 5-inch exhaust manifold fits perfectly into the 2007-2012 RAM model. Also, the perfect throat sound is so attractive.

Key features:

  • aluminium structure 
  •  Easy installation with essential tools 
  •  Mileage increase 
  •  Significantly increase torque and output 
  •  Nice soft exhaust

Technical Details:

Brand: Diamond Eye

Model: K5252A

Weight: 1 pound

Dimensions: 52 x 21 x 13 inches

Availability: Diamond Eye K5252A Exhaust Kit is currently available on Amazon.

Pricing: It costs $333.43 from Amazon.

6. MBRP S61340PLM Exhaust System


This model of MBRP is made of 16 gauge aluminium plated steel with a diesel particulate filter system. The nice thing about this exhaust manifold is that it doesn’t require much maintenance. 

This is designed to burn larger exhaust particles before passing through the filter system.

MBRP’s S61340PLM model is known for its ultimate power and performance. The ejection of hot air and the inflow of cold air are essential to any exhaust system, and this MBRP model is an advantage. 

The main pipe is about 5 inches in diameter, and the exhaust manifold sounds slightly louder.

This MBRP model boosts the car’s performance by increasing torque and power to incredible levels. Ease of installation further enhances the quality.

Key features:

  • Ideal for Dodge of 20102012  
  •  5-inch exhaust manifold. 
  •  Big radius and bend 
  •  Silencer design that enables free river 
  •  Two tailpipes.

Technical Details:

Brand: MBRP

Model: S61340PLM

Weight: 17.6 kilogram

Availability: MBRP S61340PLM Exhaust System is currently available on Amazon.

Pricing: It costs $349.99 from Amazon.

7. Flowmaster 817757 Axle-Back 409S


Are you one of those people looking for double exhaust in their Cummins? If so, this is what you should get. This is a product that is universally compatible with almost all vehicles. 

Flowmaster designed this product to have a straight pipe design with good performance. Also, Flowmaster ships products with 5-inch polished chips, so no silencer is needed. The mandrel bending hose allows for stable airflow. 

In addition, easy bolt-on installation makes this product the perfect choice for buyers. 

Undoubtedly, the primary purpose of this product is to provide the lowest EGT. You can ultimately improve your vehicle’s engine performance by investing in this product.

Flowmaster has verified that the product bundle includes all the hangers and clamps needed for installation. Therefore, you can enjoy the hassle-free installation process.

Flowmaster 817592

Car Exhaust System Parts

Key features:

  • Available in various shapes and sizes 
  • Universal fit 
  •  Moderate exterior and soft interior exhaust  
  •  Stainless steel muffler 
  •  Curved exhaust pipe

Technical Details:

Brand: Flowmaster

Model: 817757

Weight: 69 pounds

Dimensions: ‎59.75 x 13.25 x 15.25 inches

Availability: Flowmaster 817757 Axle-Back 409S is currently available on Amazon.

Pricing: It costs $878.95 from Amazon.

8. 1045989 Pulse Exhaust Manifold by BD Diesel


This is another exhaust system for BD Diesel’s 5.9 Cummins. The Bd Diesel Model 1045989 is a powerful exhaust system with a very easy-to-fit and stylish look. 

Installation of this product is easy with the necessary accessories and accessories. Also, gaskets and screws are already included, so you don’t have to buy them from the outside. 

In addition, it is very durable compared to other exhaust manifolds in the segment. Outstanding spool-up and low EGT make up the USP of this exhaust manifold. It consumes less fuel, which saves a lot of money. 

After all, this product is universal and compatible with multiple vehicles. Also, the stylish look of this exhaust system makes the Cummins engine bay great.

If you are looking for a stylish car that combines performance and power, this could be the best choice for your Cummins 5.9 engine.

Key features:

  • faster spool ups 
  • Low EGT 
  •  Low fuel consumption 
  •  Good quality for style 
  •  Ideal for multiple vehicles 
  •  Better than OEM

Technical Details:

Brand: BD Diesel

Model: ‎1045989

Weight: 24 pounds

Dimensions: 5.1 × 4.6 × 3.6 inches

Availability: 1045989 Pulse Exhaust Manifold is currently available on eBay.

Pricing: It costs $652.04 from eBay.

9. MagnaFlow 18951 Exhaust System Kit


Magna’s aluminium-plated 5-inch turbo exhaust manifold comes with a muffler, making it another solid choice on this list. As you know, the muffler is an indispensable element for installing the product. 

Moreover, the installation process of this product is not so complicated, and there is no need to assemble the welder.

In addition, the performance of this exhaust manifold is excellent because it reduces the exhaust noise of the vehicle. All fittings and tubes are quickly and seamlessly connected.

 Also, the screws in the package are easy to install. , The hanger aligns with the stock hanger. After installing this exhaust manifold, performance will be significantly improved. 

This MagnaFlow 18951 outlet manifold includes all necessary fittings. So the installation procedure is simple and easy.

Key features:

  • Proven performance with Dyno
  •  Made of aluminium plated steel 
  •  Mandrel-bent hose 
  •  The muffler is coming soon 
  •  Silent Performer

Technical Details:

Brand: BD Diesel

Model: ‎1045989

Weight: 24 pounds

Dimensions: 5.1 × 4.6 × 3.6 inches

Availability:  MagnaFlow 18951 Exhaust System Kit is currently not available on Amazon.

Pricing: Currently not available.

10. APDTY 785713 Exhaust Manifold Kit


The APDTY 785713 Exhaust Manifold is an excellent OEM exhaust manifold for 5.9 litres Cummins engines. 

This is a great distributor that works with all selected models. Therefore, if you are looking for an OEM exhaust manifold, this can be a good option. It’s not premium, but it does what the exhaust manifold should do. This will allow the engine to run more efficiently. 

Try this exhaust if you are looking for a cheaper model that outperforms the stock and provides decent power for the Cummins 5.9 litres.

It doesn’t have as much horsepower or performance as the ATS or aFe exhaust manifold or a Dorman or BD diesel durability. But it will be an excellent alternative to your 5.9 Cummins Stock Exhaust Manifold.

APDTY 785713 Exhaust Manifold

Car Exhaust System Parts
  • Meets Or Exceeds OEM Specs
  • Factory OEM Fit Form And Function

Key features:

  • 1999-2002 Dodge RAM
  • 9 Dodge Cummins
  • OEM Factory Fit
  • For Parts 501417AC, 5014170AD,

Technical Details:

Manufacturer: APDTY

Brand: APDTY

Model: 785713

Weight: 14.57 pounds

Dimensions: 12.63 x 7.88 x 28.88 inches

Availability: APDTY 785713 is currently available on Amazon.

Pricing: It costs $177.15 from Amazon.


Finding the best exhaust for your 5.9 Cummins depends on your preferences. All products on this list are high quality and have received excellent customer reviews. 

When shopping to keep it in your mind, buy one that improves engine performance and is compatible with your vehicle. 

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