6.7 Cummins Vgt Turbo Upgrade

A 6.7 Cummins Vgt Turbo Upgrade is a modification to the existing turbocharger on your vehicle that boosts its performance and provides more power and torque output. The upgrade involves replacing or modifying the stock turbo with an aftermarket, high-flow version, which increases airflow into the engine and helps it to produce more horsepower and torque from every rotation of its crankshaft. Depending on your application, you may also need to change other components such as intercoolers and fuel injectors for optimal results.

An upgraded exhaust system can also help in further increasing efficiency by expelling hot air faster from the cylinders.

One of the most popular upgrades for a 6.7 Cummins VGT turbo is to install an aftermarket turbocharger that has been designed to increase performance and efficiency. By upgrading your turbo, you can experience improved fuel economy and increased power output from your truck’s engine. Additionally, you will also benefit from reduced emissions while having more control over boost levels and better throttle response.

This upgrade can be easily completed in an afternoon or with the help of a professional mechanic or tuner specializing in diesel engines.

Dodge Ram Cummins 6.7 VGT Turbo Upgrade | Best replacement Turbo

What is the Best Turbo for the 6.7 Cummins?

When it comes to the 6.7 Cummins, there is no one turbo that stands out as being the “best” choice for everyone. There are several different options available, based on factors such as horsepower and torque goals, budget, and other considerations. For those looking for a good balance of power output and cost efficiency, the Holset HX40 Super 40 should be at the top of your list.

This turbocharger offers excellent response time with minimal lag even in large displacement engines like the 6.7L Cummins engine while still providing plenty of boost pressure needed to generate more horsepower and torque than stock turbos can provide. Another great option would be an upgraded Garrett GT3788VA charger which provides superb airflow capabilities while also being very reliable under higher boost pressures resulting in greater gains over factory specs when combined with proper tuning and fuel system upgrades. Ultimately though, choosing the right turbo setup will depend on each individual’s needs so research accordingly before making any decisions!

How Much Boost Can a Stock 6.7 Cummins Turbo Handle?

A stock 6.7 Cummins turbo can handle up to a maximum of around 62 psi of boost. The exact amount that the engine can handle will depend on several different factors, including the type of fuel used, the overall condition and performance of the engine components, as well as how much tuning has been done to optimize it for higher levels of boost. While some enthusiasts may be able to push their 6.7 Cummins turbos past this limit with additional modifications and adjustments, doing so is not recommended without careful consideration given to its safety limits and aftermarket or custom-built parts that are designed specifically for such use cases.

Additionally, even when working within these safe limits, any build should always include an upgraded intercooler system in order to ensure maximum cooling efficiency during extended periods at high levels of boost pressure. Ultimately, those looking to get more power out of their 6.7 Cummins turbos should consult experienced professionals before attempting any serious upgrades or modifications in order to maximize performance while remaining within safe limits at all times.

What Size is the Stock Turbo on a 6.7 Cummins?

The stock turbo on a 6.7 Cummins is an S300G Turbocharger, which measures 81mm in inducer size and 118mm in exducer size. The turbine wheel measures 63mm in both the inducer and exducer size. It was designed to provide more efficient use of exhaust gas while producing less heat than other turbos on the market.

This turbo provides excellent performance gains with its quick spool up time, improved air flow capacity, and lower EGTs (Exhaust Gas Temperatures). While this turbo can be replaced with a larger option if desired, it is capable of providing plenty of power for most applications without any modifications being needed.

Can You Compound a Vgt Turbo?

Yes, you can compound a VGT turbo. Compounding is simply running two turbos in parallel, where one turbo feeds the other and helps to reduce exhaust back pressure while providing more boost. This setup has become increasingly popular on diesel trucks due to its ability to provide extra power without sacrificing efficiency or reliability.

By compounding your VGT turbocharger, you can increase horsepower and torque significantly while still maintaining the efficient operation of the original single-turbo setup. The key benefits of compounding include improved throttle response, lower exhaust temperatures, better fuel economy, reduced emissions levels and increased reliability. However, it’s important to note that compounding is not for everyone; if you are looking for a simple performance upgrade then a stock replacement may be more appropriate than going with a compounded system.

Additionally it takes skill and experience to properly install this type of setup so having an experienced technician handle the job is highly recommended if you decide to go down this route!

6.7 Cummins Vgt Turbo Upgrade

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Best 6.7 Cummins Vgt Turbo Upgrade

When it comes to upgrading your 6.7 Cummins VGT turbo, the best option is to install a performance-oriented turbocharger that can increase output by up to 20%. This will provide increased power and torque while improving overall engine efficiency. A quality upgrade can also improve fuel economy and reduce exhaust emissions, making it an excellent choice for anyone looking for better performance from their Cummins VGT Turbo.

6.7 Cummins Turbo Upgrade With Exhaust Brake

Upgrading your 6.7 Cummins diesel engine with a turbo upgrade and exhaust brake can help increase the performance of your vehicle while also giving you added control on the road. With an upgraded turbo, you can expect to see improved power and torque as well as greater fuel efficiency, all while still maintaining optimal safety standards. The exhaust brake is great for controlling speed when going downhill or during tight turns; it works by using the back pressure of the exhaust system to slow down the truck without having to use brakes.

It’s a great way to improve both performance and safety on any Cummins powered vehicle!

6.7 Cummins Vgt Turbo Actuator

The 6.7 Cummins Vgt Turbo Actuator is an electronically operated turbocharger system used in the Dodge Ram 2500 and 3500 series trucks. It uses a variable geometry turbine (VGT) to adjust the exhaust flow for improved engine performance, allowing for better fuel efficiency and lower emissions. The actuator is responsible for controlling how much air is entering the combustion chamber of each cylinder, helping to ensure optimal power output from your engine.

With regular maintenance, this part can last up to 150,000 miles before needing replacement.


In conclusion, upgrading a 6.7 Cummins VGT turbo can be an incredibly rewarding experience for any diesel enthusiast. Not only does it provide improved performance and fuel economy, but it also adds reliability to the engine as well. The installation process is straightforward and requires minimal tools and knowledge of the vehicle’s systems.

With proper maintenance and care, this upgrade can last for years to come with little-to-no issues or complications. Overall, upgrading your 6.7 Cummins VGT turbo is a great way to improve overall engine performance while also increasing longevity in your beloved diesel truck!


  • Zayn

    John Zayn Smith is a renowned truck enthusiast, automotive industry expert, and author. Beginning his career as a mechanic, Zayn's curiosity led him to explore all facets of the trucking world, sharing his insights through in-depth articles on TruckGuider.com. His knowledge spans truck mechanics, trends, and aftermarket modifications, making him a trusted resource for both professionals and hobbyists. Outside writing and mechanics, Zayn enjoys off-roading, truck shows, and family time. Follow his work for the latest in truck-related news and tips.

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