Exhaust Systems for 6.7 Powerstroke – FAQ & Buyer’s Guide!

The 6.7 Powerstroke exhaust system principle is quite simple for everyone who is interested in this question. The main thing that you need to know is the nature of this unit. It consists of removing exhaust gases directly from the combustion chamber. When the exhaust valve opens, the mass of exhaust gases begins to flow into the inlet manifold.

In the event that the car engine is gasoline, the gases after passing the collector immediately move into the intake pipe, and from there, go further to the exit. If it’s a diesel engine, all the parts first activate the turbocharger impeller and only then go directly into the pipe.

Exhaust Systems for 6.7 Powerstroke – Comparison Table

Image	Product
Polished Exhausts for 6.7 Powerstroke	MagnaFlow 17873 Stainless steel cat-back design Moderate exterior sound Dyno-proved performance Check Price	Check Price
Moderate sound	MagnaFlow 17068 409 stainless steel construction Mandrel-bent tubing Bolt-on / Clamp-on type Check Price	Check Price
Best Exhausts for 6.7 Powerstroke	MBRP S6290AL Aggressively sounding diesel exhaust system Aluminized structure Large mandrel bends Check Price	Check Price

Regardless of the engine type, any exhaust system scheme assumes that after the intake pipe, the gases will first go into the catalyst, where the cleaning process with high temperatures (about 250 degrees) will occur. The entire temperature in the catalyst will be controlled by a lambda probe.

The amount of incoming air and fuel in the cylinders is completely dependent on a special sensor which indicates the temperature level. After that, the process undergoes the extinguish procedure which takes place in the resonator. As a result, the processed gases are discharged through the muffler.

Below is the list of affordable high-quality exhaust systems for 6.7L Powerstroke that will surely add some style and power to your truck.

Review of Top-Rated Exhaust Systems for 6.7 Powerstroke

1. MagnaFlow 17873 – 2019 Ford Super Duty Exhaust

This cat-back system from MagnaFlow is also made of 200% stainless steel to provide exceptional reliability during an impeccable performance. The sleek look of the system is provided by the polished exterior of the construction to give that extra glitter and add some posh style to your truck.

The 4″ Pro DPF Series comes with all the needed clamps and a lifetime warranty which guarantees great performance. However, keep in mind that you will still need minimum basic tools to do the installation.

MagnaFlow 17873 Systems Cat Back, 1 Pack

• Great quality and sound
• For trucks with 4" exhaust piping
• Easy installation with bolt-tightening clamp built onto tip
• Fit type: Universal Fit

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The 17873 system also includes a dual 5″ round tip to provide increased exhaust flow, improved HP, torque, throttle, and better fuel efficiency for 2008-2018 Ford 6.7L Powerstroke.

It’s a great lightweight replacement exhaust system (57.1 x 15.5 x 12.4) with no-muffler (moderate exterior sound) and no-emissions legal design.

2. MagnaFlow 17068 Exhaust for 6.7 Diesel

Tired of looking for a high-end exhaust system? Magnaflow’s got your back! We have the manufacturer that gives peace of mind to the customers all over the world here. Everything is premium and simple when it comes to Magnaflow (USA). The components of this particular single exhaust system with dual exits provide a reliable service for a lifetime, using the latest technology.

Cat Back

• Our parent company specializes in superior catalytic converter technology and has spent the last 30 years earning its reputation as a market leader around the world.
• Fit Type: Universal Fit

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The 409 4″ stainless steel tubing (5″ black-coated tip). The exhaust system provides moderate exterior and mild interior sound. The kit comes with all the hardware and instructions needed, so if you have basic automotive skills, you can bolt on the system yourself.

However, the manufacturer recommends professional installation. Add some improvement and style to your truck without breaking a bank! Check the details below!

3. MBRP S6290AL – Best Exhaust For 6.7 Powerstroke

This 5″ diesel exhaust system has everything you expect from a high-quality product without any compromises. Starting with easy assembly (the whole process takes around 1 hour) and ending with an aggressive sound. That’s exactly what you have always wanted for your 6.7L Powerstroke, isn’t it? So think no more and add some aggressiveness to your Ford sound!

MBRP S6290AL 4" Filter-Back Single Side Dual Exit Exhaust System (2017-Up F-250/350/450 6.7L), Aluminized

• Built to Perform
• Minimize Backpressure
• Easy Installation
• Dual T-304 stainless steed tip; Mandrel-Bent 4" Tubing
• Standout Styling

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The kit also includes high-quality aluminized MBRP seamed tubing as well as a heavy-duty one-piece tailpipe. It’s simply a perfect fit, plus, you don’t have to worry about any twists or bends – the pipe has large radius mandrel bends to get those exhaust gases out fast.

This system will surely help you get the most of your cold air intakes, tuners, modules, and other devices. Expect +18HP and 28 ft-lbs bonus! More towing power and improved throttle response to see what your Ford truck is really capable of. The weight of the whole system is 43 lbs. The product is covered by a 1-year warranty.

4. Edge Products 17792 – 2015-16 Ford 6.7L Single F250-350-450 Exhaust

The new stainless steel Jammer exhaust system is designed for longevity of your big bad Ford truck. You can increase your exhaust flow, towing, throttle response, and mileage, as well as entire power. Moreover, the Edge’s Jammer exhaust system reduces the exhaust gas temperature and decreases backpressure.

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Overall, this exhaust with 4″ to 5″ chrome tailpipe simply gives your truck that additional improvement that you never thought you could have for your truck. The 17792 Jammer exhaust was built to last, supplying more fresh air to your engine.

By lowering back pressure, you let the hot air out more quickly, reducing exhaust gas temperature and keeping the engine performance more efficient. The fresh design with Mandrel bends allows for easy clean install make the Jammer exhaust a snap to install. Looking for the ultimate exhaust system?

Add an Edge performance product (as well as Jammer Cold-Air intake) to your list and make the right decision!

5. Gibson Performance Exhaust 60-0020 – Stainless Steel DPF-Back Exhaust System For F250/F350

Have you ever heard of Metal Muslisha, the streetwear brand? Does the name Brian Deegan ring the bell? In case you didn’t know, that’s a worldwide famous motorbike stuntman who first made 360-degree stunt in a competition (Twist Mulisha). He is one of the two co-founders of the brand which was created in 1997.

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You may wonder how is this all connected with this high-quality stainless steel Gibson Performance system. Well, let’s put it this way, when it’s time to get crazy and do something out of this world that you have never done before, something wild and risky, the action world calls Brian Deegan.

And when you want your truck to sound aggressive and provide more power, better fuel efficiency, you look toward Gibson Performance Exhausts! Today, the Gibson family and Brian Deegan, bring you the hottest exhaust system on the planet, Metal Mulisha 4″ Exhaust with 8″ black ceramic round slash-cut tip!

The stainless steel system comes with a muffler delete pipe and all the hardware you need to mount it on your truck. Plus, it’s backed by a lifetime warranty! You can also find an alternative black ceramic exhaust tip with the Metal Mulisha logo on the official website (gibsonperformance.com).

6. aFe 49-03039NM – 6.7 Powerstroke Downpipe Back Exhaust

The Atlas heavy-duty exhaust system from the same manufacturer has 5″ stainless steel aluminized tubing system that was built to perform in the toughest conditions, no matter the vibration or heat intensity. The product features mandrel-bent tubing to provide improved exhaust flow, HP, torque, throttle response, lower EGTs/turbulence.

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It’s simply a great mix of quality, performance, and value. You will have no problems with mounting it on your diesel truck due to the 2-piece tailpipe design for an ideal fit, allowing adjustability at the tailpipe section. All the aFe systems are dyno-tested and use stock mounting locations, which guarantees stability and fast installation.

This exhaust was born to provide aggressive sound to your diesel truck thanks to a muffler delete pipe, built for true racers. Note that this is a “race only” product. There are many tube sizes available on the official site, so make sure you choose the right one before you buy it.

7. aFe Power 49-43065-P – Dpf Back Exhaust 6.7 Powerstroke

The large Bore-HD aFe Power (USA) promises +8 HP and +11 ft-lbs of torque over your stock exhaust system. The 4″ mandrel-bent stainless steel tubing provides maximum airflow and smooth transition bends for decreased turbulence. You can also expect lower EGTs due to unique air vents and a mitered merge collector to prevent hinder flow.

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The system features a dual side exit, 6″ stainless steel clamp-on tips, black laser-cut stainless steel aFe Power logo plate, and intercooling tailpipes to lower exhaust gas temperatures. 100$ hand MIG-welded. Proudly manufactured and assembled in the US.

8. MBRP S6291409 – 2017 6.7 Powerstroke Exhaust

The harshest road conditions mean nothing to this dual MBRP diesel exhaust system for Powerstroke engines. Not only does it look good, but it also has impressive performance rates (+18 HP and +28 ft-lb of torque), lower EGTs and heat reduction, improved pulling power, lower exhaust gas temperature (by 200 degrees), better throttle response, and improved fuel efficiency.

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The MBRP’s XP Series system is ready to improve your big bad Ford truck performance for a lifetime, making it perform like never before, no matter what road you choose. You will be surprised by what your truck can do. The kit features dual 304 steel mirror-polished tips, 4″ T-409 stainless steel heavy-duty tubing, and bolt-on mounting system for easy installation.

If you want your truck to have better performance as well as better appearance and sound, if you want to be the most powerful on the road, you should consider this specifically tuned system from MBRP.

9. Diamond Eye K4376A – 4 Inch Exhaust 6.7 Powerstroke

If you want a tough diesel exhaust for a low price, check out this classic system from Diamond Eye. The DPF-Back kit features 4″ aluminized single back exhaust tubing carefully mandrel-bent to provide maximum exhaust outflow that breaks your stock system’s restrictions.

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You also have a uniquely-designed muffler that’s included in the kit to produce a rich moderate tone without annoying drone noise like other exhaust systems on the market may produce. The system provides improved horsepower, torque, and better fuel economy. It’s can be perfectly bolted on 2011-2014 F150/F350/F450 Super Duty Ford trucks with any cab or bed configurations.

Best Exhaust Systems for 6.7 Powerstroke – Buyer’s Guide

Vehicle Exhaust System

One of the most important elements in the exhaust system of a vehicle is the manifold. With the help of this unit, the system is able to remove all exhaust gases from the combustion chamber. All of them are delivered directly to special tubing which serves as usual intermediate elements of the whole chain of a gas exhaust procedure.

The inlet manifold is one of the favorite devices for tuning by specialists. This is due to the fact that a clean and properly maintained collector is able to provide cylinders with large amounts of fuel to significantly increase the power of your vehicle.

The next link in the exhaust system chain is a catalytic converter. This device serves as a cleaner, destroying all the unusable elements of gases and reducing their toxicity. If you examine this subsystem in a cross-section, you can find the ceramic outer shell consisting of thin valves.

These valves are covered with a thin layer of the platinum inside. Besides, instead of the platinum, many rare metals such as rhodium or palladium can also be used. Because the catalyst material is very expensive, the cost of such a catalyst is also very high.

The catalyst is followed directly by a resonator. The main task of the latter is a highly abrupt expansion of the exhaust gases. It is because of this process that the back pressure of the exhaust channel is significantly reduced, and the shock wave is softened by several times.

The final unit in the exhaust system’s arsenal is a muffler that is directly responsible for the exterior/interior sound produced by the vehicle. In the modern world, there are three types of this system: reflector, limiter, and absorber.

After a brief description of the device, you have to define the main tasks of the exhaust system. As mentioned above, the main purpose of the system is to exhaust the gases from the inlet manifold. In addition, the auxiliary functions of the exhaust system are: muffling the sound of the engine during its operation, as well as ensuring the eco-friendliness of most of the exhaust products.

The latter function is essential when it comes to potential changes in the environmental part of the muffler when tuning the exhaust system. In case some deviations in the purity of exhaust gases take place, issues with the state inspection may arise.

In general, the exhaust system can be divided into three elements.

• The inlet manifold acts as an exhaust gas collector and also as a conductor for these gases to the outlet into the pipe.
• The catalytic converter cleans the gases, making them less toxic.
• The muffler is the main device designed to reduce exhaust noise into the atmosphere. The muffler is designed to dampen the velocity of the exhaust gases, which affects the noise from the outlet.

Should You Tune Your Exhaust System?

Before you do the tuning of your exhaust system, ask yourself the question. Quite often it happens that when repairing the system, car enthusiasts start to wonder about tuning. Conditionally, exhaust system tuning can be divided into a few types.

• Audio tuning. This type of tuning is performed to ensure that the vehicle’s exhaust system produces “growling and muttering” pleasant to the ears sounds that characterize the entire engine power. This type of tuning involves complete replacement of the neutralizer with a flame arrester. In addition, a straight-through muffler should be installed.
• Video tuning is about the greatest variety of visual beauty – muffler tips and the “tail”. This type of tuning does not require any special interference in the design of the exhaust system as well as additional expenses. You can also notice the “dragon’s tongue” which is a flame ejection from the exhaust pipe. But this kind of tuning requires direct intervention in the design of the exhaust system. However, the effect will be noticeable only when the vehicle is parked.
• Technical tuning is a potential increase in vehicle power (up to 18%). However, the fuel consumption of the vehicle may increase significantly.

The exhaust system of every modern vehicle includes many parts. The system of any vehicle is designed to reduce engine noise to the maximum possible level. However, this often results in a slight loss of power. Typical exhaust systems are made back-flow, which means that the recycled gas is turned in the opposite direction while driving, creating an increase in resistance.

Straight-through systems minimize the resistance of the exhaust system. So, if you have a decision in your head about tuning the exhaust system, then you should prepare to replace the main components of the exhaust system. It’s a valuable operation, but if you really want to get the best results from your truck, you’ll have to do your best.

Exhaust System Tuning Pros and Cons

Answering the question about power, we can confidently recommend technical re-equipment of the entire exhaust system, fine-tuning of the engine, calibration of electricity consumption and the rest of the list of improvements.

The straight-through exhaust system is an important attribute of vehicle tuning. As a rule, it is most often found on “charged” models. A standard muffler is a maze of partitions through which gas passes. At the same time, its speed and sound gradually decrease. Due to the presence of special perforated elements, there is an effect of muting high frequencies, on the principle of the resonator.

By tuning the exhaust system, you can solve several problems at once. Firstly, your vehicle’s engine sound gets improved as well as the style gets more aggressive vibes. Secondly, with the help of tuning, the power of the vehicle increases.

For every car enthusiast, it is essential that the vehicle works as a well-coordinated mechanism. Therefore, the improvement of the exhaust system should be taken seriously. We do not recommend to save money on this, as qualitative tuning can increase the capacity parameters of the vehicle, and the unsuccessful one will only add additional costs and nervousness.

There are no special rules when choosing an exhaust system. Thus, you should build on your own desires and budget, considering your vehicle’s capabilities. Owning a big truck, with the help of exhaust system tuning, it is possible not only to improve the sound but also add some horsepower, torque, throttle response, improve fuel efficiency, and lower EGTs and turbulence. If your car does not have high power, the focus should be on improving its visual perception, using external tuning.

Positive factors of tuning:

• Increased vehicle power (especially for diesels);
• Prolonged engine’s lifespan (reduced the pressure);
• New powertrain sound. There are systems with variable sounds, e.g. the ones that allow you to switch to a race mode or city mode.
• New tip design changes, which can add to the style of the vehicle.
• Professional tuning of the exhaust system implies almost total creation from scratch, not a replacement of certain elements. Stainless steel is chosen as the material which increases durability.

Negative factors of tuning:

• Unfortunately, professional and qualitative modernization of the exhaust system is not cheap;
• Possible problems with re-registration of the vehicle due to exhaust system modernization. However, tuning can be performed almost imperceptibly;
• The increase in power may be less than expected.
• Increased fuel consumption, which is associated with a higher power, as well as a change in driving style to a more aggressive one.
• Environmental issues.

Exhaust system tuning is not just a straightforward installation but a serious work that requires an engineering approach, on which many vehicle parameters depend.

Conclusion

Most enthusiasts and vehicle owners do not realize the importance of the exhaust system in a modern car. Besides the fact that it provides quieter engine operation as well as reduces the level of emissions into the atmosphere, it also normalizes the engine operation.

Not quite so, but almost all modern engines are tuned to work with a certain exhaust system, without which the engine can fail. We should also note that a modern exhaust system, due to the requirements of noise and environmental standards, can “choke” the engine.

Therefore, in the modern world, competent and professional exhaust system tuning is highly relevant. You should not just go with banal “direct flow” installation – it won’t do any good except for the loud sound.

One of the most attractive aspects of exhaust system tuning is the increase in engine power, typically from 1% to 18%. The figure depends on many factors. The sound of the engine also gets improved and it does not necessarily become louder.